Latest published papers

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Investigating dynamical properties of evolved Galactic open clustersFeb 21 2019The stellar content of Galactic open clusters is gradually depleted during their evolution as a result of internal relaxation and external interactions. The final residues of the evolution of open clusters are called open cluster remnants, barely distinguishable ... More
When Primordial Black Holes from Sound Speed Resonance Meet a Stochastic Background of Gravitational WavesFeb 21 2019As potential candidates of dark matter, primordial black holes (PBHs) are within the core scopes of various astronomical observations. In light of the explosive development of gravitational wave (GW) and radio astronomy, we thoroughly analyze a stochastic ... More
Magneto-optical Signatures of Volkov-Pankratov States in Topological InsulatorsFeb 21 2019In addition to the usual chiral surface states, massive surface states can arise at a smooth interface between a topological and a trivial bulk insulator. While not subject to topological protection as the chiral states, these massive states, theorized ... More
How Variation in Analytic Choices Can Affect Normalization Parameters and Proton Radius Extractions From Electron Scattering DataFeb 21 2019Floating normalization parameters in regressions allow incorporation of prior knowledge, such as a known analytic behavior and/or a known value at a kinematic endpoint. Unfortunately, there is often no unique way to make use of this prior knowledge, and ... More
Stability conditions in familiesFeb 21 2019We develop a theory of Bridgeland stability conditions and moduli spaces of semistable objects for a family of varieties. Our approach is based on and generalizes previous work by Abramovich--Polishchuk, Kuznetsov, Lieblich, and Piyaratne--Toda. Our notion ... More
Policies for growth of influence networks in task-oriented groups: elitism and egalitarianism outperform welfarismFeb 21 2019Communication or influence networks are probably the most controllable of all factors that are known to impact on the problem-solving capability of task-forces. In the case connections are costly, it is necessary to implement a policy to allocate them ... More
Finding the Needle in a Haystack: Detrending Photometric Timeseries Data of Strictly Periodic Astrophysical ObjectsFeb 21 2019Light curves of astrophysical objects frequently contain strictly periodic signals. In those cases we can use that property to aid the detrending algorithm to fully disentangle an unknown periodic signal and an unknown baseline signal with no power at ... More
Density distributions and depth in flocksFeb 21 2019Recent experimental evidence suggests that interactions in flocks of birds do not involve a characteristic length scale. Bird flocks have also been revealed to have an inhomogeneous density distribution, with the density of birds near the border greater ... More
Instability of exotic compact objects and its implications for gravitational-wave echoesFeb 21 2019Exotic compact objects (ECOs) have recently become an exciting research subject, since they are speculated to have a special response to the incident gravitational waves (GWs) that leads to GW echoes. We show that energy carried by GWs can easily cause ... More
Online Sampling from Log-Concave DistributionsFeb 21 2019Given a sequence of convex functions $f_0, f_1, \ldots, f_T$, we study the problem of sampling from the Gibbs distribution $\pi_t \propto e^{-\sum_{k=0}^t f_k}$ for each epoch $t$ in an online manner. This problem occurs in applications to machine learning, ... More
On the growth rate of chromatic numbers of finite subgraphsFeb 21 2019We prove that, for every function $f:\mathbb{N} \rightarrow \mathbb{N}$, there is a graph $G$ with uncountable chromatic number such that, for every $k \in \mathbb{N}$ with $k \geq 3$, every subgraph of $G$ with fewer than $f(k)$ vertices has chromatic ... More
Mathematical analysis and numerical solution of models with dynamic Preisach hysteresisFeb 21 2019Hysteresis is a phenomenon that is observed in a great variety of physical systems, which leads to a nonlinear and multivalued behavior, making their modeling and control difficult. Even though the analysis and mathematical properties of classical or ... More
Stochastic thermodynamics of self-oscillations: the electron shuttleFeb 21 2019Self-oscillation is a phenomenon studied across many scientific disciplines, including the engineering of efficient heat engines and electric generators. We investigate the single electron shuttle, a model nano-scale system that exhibits a spontaneous ... More
On entanglement breaking times for quantum Markovian evolutions and the PPT-squared conjectureFeb 21 2019We investigate entanglement breaking times of Markovian evolutions in discrete and continuous time. In continuous time, we characterize which Markovian evolutions are eventually entanglement breaking, that is, evolutions for which there is a finite time ... More
Scattering amplitudes versus potentials in nuclear effective field theory: is there a potential compromise?Feb 21 2019In effective field theory physical quantities, in particular observables, are expressed as a power series in terms of a small expansion parameter. For non-perturbative systems, for instance nuclear physics, this requires the non-perturbative treatment ... More
A Dictionary Based Generalization of Robust PCAFeb 21 2019We analyze the decomposition of a data matrix, assumed to be a superposition of a low-rank component and a component which is sparse in a known dictionary, using a convex demixing method. We provide a unified analysis, encompassing both undercomplete ... More
On the choice of a conformal Gauss gauge near the cylinder representing spatial infinityFeb 21 2019A convenient approach to analyze spatial infinity is to use a cylinder representation $I$ and impose a gauge based on a congruence of conformal geodesics. This so-called conformal Gauss gauge comes along with the freedom to specify initial data for the ... More
On modules $M$ with $τ(M) \cong νΩ^{d+2}(M)$ for isolated singularities of Krull dimension $d$Feb 21 2019A classical formula for the Auslander-Reiten translate $\tau$ says that $\tau(M)\cong \nu \Omega^2(M)$ for every indecomposable module $M$ of a selfinjective Artin algebra. We generalise this by showing that for a $2d$-periodic isolated singularity $A$ ... More
On the anticipative nonlinear filtering problem and its stabilityFeb 21 2019In this paper, we consider an anticipative nonlinear filtering problem, in which the observation noise is correlated with the past of the signal. This new signal-observation model has its applications in both finance models with insider trading and in ... More
A Stacked Autoencoder Application for Residential Load Curve Forecast and Peak ShavingFeb 21 2019For the last ten years, utilities have observed on-going transitions on consumers' load curves. The previously flat load curves have more frequently turned into duck-shape. This is jointly caused by the increasing household loads as well as the popularity ... More
Marginal deformations and quasi-Hopf algebrasFeb 21 2019We establish the existence of a quasi-Hopf algebraic structure underlying the Leigh-Strassler N=1 superconformal marginal deformations of the N=4 Super-Yang-Mills theory. The scalar-sector R-matrix of these theories, which is related to their one-loop ... More
The harmonicity of slice regular functionsFeb 21 2019In this article we investigate harmonicity, Laplacians, mean value theorems and related topics in the context of quaternionic analysis. We start by improving the definition of slice regular function over the quaternions $\mathbb{H}$ given by Gentili-Struppa ... More
Learning-Based Proxy Collision Detection for Robot Motion Planning ApplicationsFeb 21 2019This paper demonstrates that collision detection-intensive applications such as robotic motion planning may be accelerated by performing collision checks with a machine learning model. We propose Fastron, a learning-based algorithm to model a robot's ... More
Optimal Power Flow for DC Networks with Robust Feasibility and Stability GuaranteesFeb 21 2019With high penetrations of renewable generation and variable loads, there is significant uncertainty associated with power flows in DC networks such that stability and constraint satisfaction are important concerns. Most existing DC network optimal power ... More
Asymptotics of Hankel determinants with a Laguerre-type or Jacobi-type potential and Fisher-Hartwig singularitiesFeb 21 2019We obtain large $n$ asymptotics of $n \times n$ Hankel determinants whose weight has a one-cut regular potential and Fisher-Hartwig singularities. We restrict our attention to the case where the associated equilibrium measure possesses either one soft ... More
Galaxy shape measurement with convolutional neural networksFeb 21 2019We present our results from training and evaluating a convolutional neural network (CNN) to predict the shapes of galaxies from wide field survey images. As ground truth, we use conventional shape measurements from an overlapping superior, deeper survey ... More
Topology of Learning in Artificial Neural NetworksFeb 21 2019Understanding how neural networks learn remains one of the central challenges in machine learning research. From random at the start of training, the weights of a neural network evolve in such a way as to be able to perform a variety of tasks, like classifying ... More
High precision determination of $α_s$ from a global fit of jet ratesFeb 21 2019We present state-of-the-art extractions of the strong coupling based on N$^3$LO+NNLL accurate predictions for the two-jet rate in the Durham clustering algorithm at $e^+e^-$ collisions, as well as a simultaneous fit of the two- and three-jet rates taking ... More
Assembly of 2N entangled fermions into multipartite composite bosonsFeb 21 2019An even number of fermions can behave in a bosonic way. The simplest scenario involves two fermions which can form a single boson. But four fermions can either behave as two bipartite bosons or further assemble into a single four-partite bosonic molecule. ... More
Optical analysis of a CMB cosmic string candidateFeb 21 2019The complexity of the cosmological scenario regarding cosmic strings (CSs) stands still in the way of a complete understanding. We describe here a promising strategy for the possible detection of these elusive physical entities. It is based on the search ... More
The Schinzel Hypothesis for PolynomialsFeb 21 2019The Schinzel hypothesis is a famous conjectural statement about primes in value sets of polynomials, which generalizes the Dirichlet theorem about primes in an arithmetic progression. We consider the situation that the ring of integers is replaced by ... More
Quantum Package 2.0: An Open-Source Determinant-Driven Suite of ProgramsFeb 21 2019\textsc{Quantum Package} is an open-source programming environment for quantum chemistry specially designed for wave function methods. Its main goal is the development of determinant-driven selected configuration interaction (sCI) methods and multi-reference ... More
Learned Step Size QuantizationFeb 21 2019We present here Learned Step Size Quantization, a method for training deep networks such that they can run at inference time using low precision integer matrix multipliers, which offer power and space advantages over high precision alternatives. The essence ... More
Deep Long Asymmetric Occultation in EPIC 204376071Feb 21 2019We have discovered a young M star of mass $0.16\,M_\odot$ and radius $0.63\,R_\odot$, likely in the Upper Sco Association, that exhibits only a single $80\%$ deep occultation of 1-day duration. The star has frequent flares and a low-amplitude rotational ... More
BFKL Pomeron and the survival factorFeb 21 2019We consider the absorptive corrections and the rapidity gap survival factor which are necessary to provide the unitarization of the BFKL Pomeron. In particular we discuss the role of the enhanced screening diagrams.
From Stress Chains to Acoustic EmissionFeb 21 2019A numerical scheme using the combined finite-discrete element methods (FDEM) is employed to study a model of an earthquake system comprising a granular layer embedded in a formation. When the formation is driven so as to shear the granular layer, a system ... More
Aperiodic Weighted Automata and Weighted First-Order LogicFeb 21 2019By fundamental results of Sch\"utzenberger, McNaughton and Papert from the 1970s, the classes of first-order definable and aperiodic languages coincide. Here, we extend this equivalence to a quantitative setting. For this, weighted automata form a general ... More
The strong running coupling from the gauge sector of Domain Wall lattice QCD with physical quark massesFeb 21 2019We report on the first computation of the strong running coupling at the physical point (physical pion mass) from the ghost-gluon vertex, computed from lattice simulations with three flavors of Domain Wall fermions. We find $\alpha_{\overline{\rm MS}}(m_Z^2)=0.1172(11)$, ... More
Visualization of Local Conductance in MoS2/WSe2 Heterostructure TransistorsFeb 21 2019The vertical stacking of van der Waals (vdW) materials introduces a new degree of freedom to the research of two-dimensional (2D) systems. The interlayer coupling strongly influences the band structure of the heterostructures, resulting in novel properties ... More
Limiting magnetic field for minimal deformation of a magnetised neutron starFeb 21 2019In this work we study the structure of neutron stars under the effect of a poloidal magnetic field and determine the limiting highest magnetic field intensity which still allows a satisfactory description of magnetic neutron stars in the spherical symmetry ... More
Total Variation and Mean Curvature PDEs on $\mathbb{R}^d \rtimes S^{d-1}$Feb 21 2019Total variation regularization and total variation flows (TVF) have been widely applied for image enhancement and denoising. To include a generic preservation of crossing curvilinear structures in TVF we lift images to the homogeneous space $M = \mathbb{R}^d ... More
Self-cancellative residuated latticesFeb 21 2019A residuated lattice is defined to be self-cancellative if it satisfies the equations x\x = e and x/x = e. Every integral, cancellative, or divisible residuated lattice is self-cancellative, and, conversely, every bounded self-cancellative residuated ... More
Effective-field theory analysis of the $τ^{-}\rightarrow (K π)^{-}ν_τ$ decaysFeb 21 2019We analyze the $\tau^-\to(K\pi)^-\nu_\tau$ decays within an effective field theory description of heavy new physics (NP) modifying the SM left-handed weak charged current and include refined SM input (with controlled uncertainties) for the participant ... More
Evaluating the Search Phase of Neural Architecture SearchFeb 21 2019Neural Architecture Search (NAS) aims to facilitate the design of deep networks for new tasks. Existing techniques rely on two stages: searching over the architecture space and validating the best architecture. Evaluating NAS algorithms is currently solely ... More
The reflection principle in the control problem of the heat equationFeb 21 2019We consider the control problem for the generalized heat equation for a Schr\"odinger operator on a domain with a reflection symmetry with respect to a hyperplane. We show that if this system is null-controllable, then so is the system on its respective ... More
Relative cubulations and groups with a 2-sphere boundaryFeb 21 2019We introduce a new kind of action of a relatively hyperbolic group on a CAT(0) cube complex, called a relatively geometric action. We provide an application to characterize finite-volume Kleinian groups in terms of action on cube complexes, analogous ... More
Unitary time-evolution in stochastic time-dependent Hilbert spacesFeb 21 2019In this work we study the unitary time-evolutions of quantum systems defined on infinite-dimensional separable time-dependent Hilbert spaces. Two possible cases are considered: a quantum system defined on a stochastic interval and another one defined ... More
A Nonparametric Multi-view Model for Estimating Cell Type-Specific Gene Regulatory NetworksFeb 21 2019We present a Bayesian hierarchical multi-view mixture model termed Symphony that simultaneously learns clusters of cells representing cell types and their underlying gene regulatory networks by integrating data from two views: single-cell gene expression ... More
Deep CNN-based Speech Balloon Detection and Segmentation for Comic BooksFeb 21 2019We develop a method for the automated detection and segmentation of speech balloons in comic books, including their carrier and tails. Our method is based on a deep convolutional neural network that was trained on annotated pages of the Graphic Narrative ... More
Exclusive vector meson production in heavy ion collisionsFeb 21 2019We discuss the salient features of exclusive vector meson production in heavy ion collisions at LHC energies. Special attention is paid to the space-time picture of the process. We account for both coherent and incoherent contributions. The explicit quantitative ... More
Coloring squares of graphs with mad constraintsFeb 21 2019A proper vertex $k$-coloring of a graph $G=(V,E)$ is an assignment $c:V\to \{1,2,\ldots,k\}$ of colors to the vertices of the graph such that no two adjacent vertices are associated with the same color. The square $G^2$ of a graph $G$ is the graph defined ... More
Domain Partitioning NetworkFeb 21 2019Standard adversarial training involves two agents, namely a generator and a discriminator, playing a mini-max game. However, even if the players converge to an equilibrium, the generator may only recover a part of the target data distribution, in a situation ... More
Maximising the Number of Cycles in Graphs with Forbidden SubgraphsFeb 21 2019Fix $k \ge 2$ and let $H$ be a graph with $\chi(H) = k+1$ containing a critical edge. We show that for sufficiently large $n$, the unique $n$-vertex $H$-free graph containing the maximum number of cycles is $T_k(n)$. This resolves both a question and ... More
Economic MPC using a Cyclic Horizon with Application to Networked Control SystemsFeb 21 2019In this paper, we analyze an economic model predictive control scheme with terminal region and cost, where the system is optimally operated in a certain subset of the state space. The predictive controller operates with a cyclic horizon, which means that ... More
Two-dimensional electronic transport in rubrene: the impact of inter-chain couplingFeb 21 2019Organic semi-conductors have unique electronic properties and are important systems both at the fundamental level and also for their applications in electronic devices. In this article we focus on the particular case of rubrene which has one of the best ... More
Hyperbolicity of asymmetric lemon billiardsFeb 21 2019Asymmetric lemon billiards was introduced in [CMZZ], where the billiard table $Q(r,b,R)$ is the intersection of two round disks with radii $r\le R$, respectively, and $b$ measures the distance between the two centers. The boundary consists of two circular ... More
A Mean Field Theory of Batch NormalizationFeb 21 2019We develop a mean field theory for batch normalization in fully-connected feedforward neural networks. In so doing, we provide a precise characterization of signal propagation and gradient backpropagation in wide batch-normalized networks at initialization. ... More
Boundary-weighted Domain Adaptive Neural Network for Prostate MR Image SegmentationFeb 21 2019Accurate segmentation of the prostate from magnetic resonance (MR) images provides useful information for prostate cancer diagnosis and treatment. However, automated prostate segmentation from 3D MR images still faces several challenges. For instance, ... More
Modifying the Chi-square and the CMH test for population genetic inference: adapting to over-dispersionFeb 21 2019Evolve and resequence studies provide a popular approach to simulate evolution in the lab and explore its genetic basis. In this context, the chi-square test, Fishers exact test, as well as the Cochran-Mantel-Haenszel test are commonly used to infer genomic ... More
Hybrid Direct-Indirect Adaptive Control of Nonlinear System with Unmatched UncertaintyFeb 21 2019In this paper, we present a hybrid direct-indirect model reference adaptive controller (MRAC), to address a class of problems with matched and unmatched uncertainties. In the proposed architecture, the unmatched uncertainty is estimated online through ... More
Self-induced Magnetic Flux Structure in the Magnetic Superconductor RbEuFe$_4$As$_4$Feb 21 2019We report an unusual enhancement of the magnetic induction in single crystals of the magnetic superconductor RbEuFe$_4$As$_4$ , highlighting the interplay between superconducting and magnetic subsystems in this material. Contrary to the conventional Meissner ... More
Report on Tests and Measurements of Hadronic Interaction Properties with Air ShowersFeb 21 2019We present a summary of recent tests and measurements of hadronic interaction properties with air showers. This report has a special focus on muon density measurements. Several experiments reported deviations between simulated and recorded muon densities ... More
Cross-Sensor Periocular Biometrics: A Comparative Benchmark including Smartphone AuthenticationFeb 21 2019The massive availability of cameras and personal devices results in a wide variability between imaging conditions, producing large intra-class variations and performance drop if such images are compared for person recognition. However, as biometric solutions ... More
Convergence of fully discrete implicit and semi-implicit approximations of nonlinear parabolic equationsFeb 21 2019The article addresses the convergence of implicit and semi-implicit, fully discrete approximations of a class of nonlinear parabolic evolution problems. Such schemes are popular in the numerical solution of evolutions defined with the $p$-Laplace operator ... More
Time and Energy Optimal Lane Change Maneuvers for Cooperating Connected Automated VehiclesFeb 21 2019We derive optimal control policies for a Connected Automated Vehicle (CAV) cooperating with neighboring CAVs to implement a highway lane change maneuver. We optimize the maneuver time and subsequently minimize the associated energy consumption of all ... More
First-order perturbation theory for material changes in the surrounding of open optical resonatorsFeb 21 2019The single-mode approximation of the resonant state expansion has proven to give accurate first-order approximations of resonance shifts and linewidth changes when modifying the material properties inside open optical resonators. Here, we extend this ... More
First-principle study of the melting temperature of MgOFeb 21 2019Using first-principles only, we calculate the melting point of MgO, also called periclase or magnesia. The random phase approximation (RPA) is used to include the exact exchange as well as local and non-local many-body correlation terms, in order to provide ... More
Dynamics of weighted composition operators on spaces of continuous functionsFeb 21 2019Our study is focused on the dynamics of weighted composition operators defined on a locally convex space $E\hookrightarrow (C(X),\tau_p)$ with $X$ being a topological Hausdorff space containing at least two different points and such that the evaluations ... More
Time versus Hardware: Reducing Qubit Counts with a (Surface Code) Data BusFeb 21 2019A data bus, for reducing the qubit counts within quantum computations (protected by surface codes), is introduced. For general computations an automated trade-off analysis (software tool and source code are open sourced and available online) is performed ... More
On the image of polynomials evaluated on incidence algebras: a counter-example and a solutionFeb 21 2019In this paper, we investigate the subset obtained by evaluations of a fixed multilinear polynomial on a given algebra. We provide an example of a multilinear polynomial, whose image is not a vector subspace; namely, the product of two commutators need ... More
The BLAS API of BLASFEO: optimizing performance for small matricesFeb 21 2019BLASFEO is a dense linear algebra library providing high-performance implementations of BLAS- and LAPACK-like routines for use in embedded optimization, and is therefore targeting relatively small matrices. One of the key features of BLASFEO is the use ... More
Disentangling fission fragment evaporation models using TALYSFeb 21 2019Several computer codes based on phenomenological models are being developed with the aim of obtaining fission observables, such as neutron and gamma multiplicities and product yields. Key points in these calculations, which are handled differently by ... More
Global Hölder estimates for 2D linearized Monge-Ampère equations with right-hand side in divergence formFeb 21 2019We establish global H\"older estimates for solutions to inhomogeneous linearized Monge-Amp\`ere equations in two dimensions with the right hand side being the divergence of a bounded vector field. These equations arise in the semi-geostrophic equations ... More
Matrix-free multigrid solvers for phase-field fracture problemsFeb 21 2019In this work, we present a framework for the matrix-free solution to a monolithic quasi-static phase-field fracture model with geometric multigrid methods. Using a standard matrix based approach within the Finite Element Method requires lots of memory, ... More
The dispersionless multi-dimensional integrable systems and related conformal structure generating equations of mathematical physicsFeb 21 2019Based on the diffeomorphism group vector fields on the complexified torus and the related Lie-algebraic structures, we study multi-dimensional dispersionless integrable systems, describing conformal structure generating equations of mathematical physics. ... More
Time-averaged height distribution of the Kardar-Parisi-Zhang interfaceFeb 21 2019We study the complete probability distribution $\mathcal{P}\left(\bar{H},t\right)$ of the time-averaged height $\bar{H}=(1/t)\int_0^t h(x=0,t')\,dt'$ at point $x=0$ of an evolving 1+1 dimensional Kardar-Parisi-Zhang (KPZ) interface $h\left(x,t\right)$. ... More
The asymptotic non-normality of the giant cluster for percolation on random split treesFeb 21 2019A split tree of cardinality $n$ is constructed by distributing $n$ "balls" (which often represent "key numbers") in a subset of vertices of an infinite tree. In this work, we study Bernoulli bond percolation on arbitrary split trees of large but finite ... More
A single TeV-scale scalar leptoquark in $\mathbf{SO(10)}$ grand unification and $\mathbf{B}$-decay anomaliesFeb 21 2019One of the explanations proposed for the recent rare $B$-decay anomalies is the existence of a scalar leptoquark. We investigate a grand unification scenario where a single, charge -1/3 scalar leptoquark ($S_1$) is present as the only new physics candidate ... More
A Fully Lagrangian Meshfree Framework for PDEs on Evolving SurfacesFeb 21 2019We propose a novel framework to solve PDEs on moving manifolds, where the evolving surface is represented by a moving point cloud. This has the advantage of avoiding the need to discretize the bulk volume around the surface, while also avoiding the need ... More
Existence of densities for stochastic evolution equations driven by fractional Brownian motionFeb 21 2019In this work, we prove a version of H\"{o}rmander's theorem for a stochastic evolution equation driven by a trace-class fractional Brownian motion with Hurst exponent $\frac{1}{2} < H < 1$ and an analytic semigroup $\{S(t); t \ge 0\}$ on a given separable ... More
Formation and eruption of sigmoidal structure from a weak field region of NOAA 11942Feb 21 2019Using observations from Solar Dynamics Observatory, we studied an interesting example of a sigmoid formation and eruption from small-scale flux canceling regions of active region (AR) 11942. Analysis of HMI and AIA observations infer that initially the ... More
Really Small Shoe Boxes - On Realistic Quantum Resource EstimationFeb 21 2019Reliable resource estimation and benchmarking of quantum algorithms is a critical component of the development cycle of viable quantum applications for quantum computers of all sizes. Determining critical resource bottlenecks in algorithms, especially ... More
Searches for third-generation scalar leptoquarks in $\sqrt{s}$ = 13 TeV pp collisions with the ATLAS detectorFeb 21 2019Limits are set on the pair production of scalar leptoquarks, where all possible decays of the leptoquark into a quark ($t$, $b$) and a lepton ($\tau$, $\nu$) of the third generation are considered. The limits are presented as a function of the leptoquark ... More
Statistics and Samples in Distributional Reinforcement LearningFeb 21 2019We present a unifying framework for designing and analysing distributional reinforcement learning (DRL) algorithms in terms of recursively estimating statistics of the return distribution. Our key insight is that DRL algorithms can be decomposed as the ... More
The inviscid limit of Navier-Stokes equations for vortex-wave data on $\mathbb{R}^2$Feb 21 2019We establish the inviscid limit of the incompressible Navier-Stokes equations on the whole plane $\mathbb{R}^2$ for initial data having vorticity as a superposition of point vortices and a regular component. In particular, this rigorously justifies the ... More
Ab-initio calculations of carbon and boron nitride allotropes and their structural phase transitions using periodic coupled cluster theoryFeb 21 2019We present an ab-initio study of boron nitride as well as carbon allotropes. Their relative thermodynamic stabilities and structural phase transitions from low- to high-density phases are investigated. Pressure-temperature phase diagrams are calculated ... More
Spatial And Temporal Changes Of The Geomagnetic Field: Insights From Forward And Inverse Core Field ModelsFeb 21 2019Observational constraints on geomagnetic field changes from interannual to millenial periods are reviewed, and the current resolution of field models (covering archeological to satellite eras) is discussed. With the perspective of data assimilation, emphasis ... More
Structure and equation-of-state of a disordered system of shape anisotropic patchy particlesFeb 21 2019We present a new two dimensional model for elliptic (i.e., shape anisotropic) patchy colloids, where the impenetrable core of the particles is decorated on its co-)vertices by Kern-Frenkel type of patches. Using (i) well-documented criteria for the overlap ... More
Boosted Top quark polarizationFeb 21 2019In top quark production, the polarization of top quarks, decided by the chiral structure of couplings, is likely to be modified in the presence of any new physics contribution to the production. Hence the same is a good discriminator for those new physics ... More
Fractional Conductance in Strongly Interacting 1D SystemsFeb 21 2019We study one dimensional clean systems with few channels and strong electron-electron interactions. We find that in several circumstances, even when time reversal symmetry holds, they may lead to two terminal fractional quantized conductance and fractional ... More
Interrupted Motility Induced Phase Separation in Aligning Active ColloidsFeb 21 2019Switching on high activity in a relatively dense system of active Janus colloids, we observe fast clustering, followed by cluster aggregation towards full phase separation. The phase separation process is however interrupted when large enough clusters ... More
Unsupervised Grounding of Plannable First-Order Logic Representation from ImagesFeb 21 2019Recently, there is an increasing interest in obtaining the relational structures of the environment in the Reinforcement Learning community. However, the resulting "relations" are not the discrete, logical predicates compatible to the symbolic reasoning ... More
A Fast Approximate Approach to Microlensing Survey AnalysisFeb 21 2019Microlensing can be used to discover exoplanets of a wide range of masses with orbits beyond ~ 1 AU, and even free-floating planets. The WFIRST mission will use microlensing to discover approximately 1600 planets by monitoring ~100 million stars to find ... More
On the qubit routing problemFeb 21 2019We introduce a new architecture-agnostic methodology for mapping abstract quantum circuits to realistic quantum computing devices with restricted qubit connectivity, as implemented by Cambridge Quantum Computing's tket compiler. We present empirical results ... More
Clifford-based spectral action and renormalization group analysis of the gauge couplingsFeb 21 2019The Spectral Action Principle in the noncommutative geometry framework provides simultaneous derivation of the actions of the Standard Model and General Relativity by reconciling them in a geometric setting, and hence offers an explanation for their common ... More
A free-energy stable nodal discontinuous Galerkin approximation with summation-by-parts property for the Cahn-Hilliard equationFeb 21 2019We present a nodal Discontinuous Galerkin (DG) scheme for the Cahn-Hilliard equation that satisfies the summation-by-parts simultaneous-approximation-term (SBP-SAT) property. The latter permits us to show that the discrete free-energy is bounded, and ... More
Cyclic annealing as an iterated random mapFeb 21 2019Disordered magnets, martensitic mixed crystals, and glassy solids can be irreversibly deformed by subjecting them to external deformation. The deformation produces a smooth, reversible response punctuated by abrupt relaxation "glitches". Under appropriate ... More
Assessing Olfaction Using Ultrasonic Vocalization Recordings in Mouse Pups with a Sono-olfactometerFeb 21 2019Olfaction is the first sensory modality to develop during fetal life in mammals, and plays a key role in the various behaviors of neonates such as feeding and social interaction. Odorant cues (i.e., mother or predator scents) can trigger potentiation ... More
The Arboricity Captures the Complexity of Sampling EdgesFeb 21 2019In this paper, we revisit the problem of sampling edges in an unknown graph $G = (V, E)$ from a distribution that is (pointwise) almost uniform over $E$. We consider the case where there is some a priori upper bound on the arboriciy of $G$. Given query ... More
Variable stars in Palomar 13; an evaporating globular clusterFeb 21 2019We present new CCD $VI$ photometry of the distant globular cluster Pal 13. Fourier decomposition of the light curves of the three cluster member RRab stars lead to estimations of [Fe/H]=-1.65, and a distance of 23.67$\pm$0.57 kpc. Light and colour near ... More