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Showing 2018 · cond-mat.stat-mechShow all

19 papers · 2 filters

cond-mat.stat-mech2018

Ultra-slow dynamics in a translationally invariant spin model for multiplication and factorization

Lei Zhang, Stefanos Kourtis, Claudio Chamon +2

We construct a model of short-range interacting Ising spins on a translationally invariant two-dimensional lattice that mimics a reversible circuit that multiplies or factorizes in…

cond-mat.stat-mech2018★ 1 cited

Return probability of fermions released from a 1D confining potential

P L Krapivsky, J M Luck, K Mallick

We consider non-interacting fermions prepared in the ground state of a 1D confining potential and submitted to an instantaneous quench consisting in releasing the trapping pote…

cond-mat.stat-mech2018★ 25 cited

Constrained optimization as ecological dynamics with applications to random quadratic programming in high dimensions

Pankaj Mehta, Wenping Cui, Ching-Hao Wang +1

Quadratic programming (QP) is a common and important constrained optimization problem. Here, we derive a surprising duality between constrained optimization with inequality constra…

cond-mat.stat-mech2018★ 2 cited

Comparison of the roughness scaling of the surface topography of Earth and Venus

G. E. Crooks, Y. Bar-Yam, S. V. Buldyrev +1

We report the scaling behavior of the Earth and Venus over a wider range of length scales than reported by previous researchers. All landscapes (not only mountains) together follow…

cond-mat.stat-mech2018★ 21 cited

Quantum criticality in Ising chains with random hyperuniform couplings

Philip J. D. Crowley, C. R. Laumann, Sarang Gopalakrishnan

We study quantum phase transitions in transverse-field Ising spin chains in which the couplings are random but hyperuniform, in the sense that their large-scale fluctuations are su…

cond-mat.stat-mech2018★ 18 cited

Quantum Hydrodynamics in Spin Chains with Phase Space Methods

Jonathan Wurtz, Anatoli Polkovnikov

Connecting short time microscopic dynamics with long time hydrodynamics in strongly correlated quantum systems is one of the outstanding questions. In particular, it is very diffic…

cond-mat.stat-mech2018★ 9 cited

Many-body systems with random spatially local interactions

Siddhardh C. Morampudi, Chris R. Laumann

We extend random matrix theory to consider randomly interacting spin systems with spatial locality. We develop several methods by which arbitrary correlators may be systematically…

cond-mat.stat-mech2018★ 3 cited

Jamming and Tiling in Aggregation of Rectangles

D. S. Ben-Naim, E. Ben-Naim, P. L. Krapivsky

We study a random aggregation process involving rectangular clusters. In each aggregation event, two rectangles are chosen at random and if they have a compatible side, either vert…

cond-mat.stat-mech2018★ 18 cited

Enhanced Grüneisen Parameter in Supercooled Water

Gabriel Gomes, H. Eugene Stanley, Mariano de Souza

We use the recently-proposed \emph{compressible cell} Ising-like model [Phys. Rev. Lett. \textbf{120}, 120603 (2018)] to estimate the ratio between thermal expansivity and specific…

cond-mat.stat-mech2018★ 12 cited

Kinetic regimes in aggregating systems with spontaneous and collisional fragmentation

Anna S. Bodrova, Vladimir Stadnichuk, P. L. Krapivsky +2

We analyze systems of clusters and interacting upon colliding---a collision between two clusters may lead to merging or fragmentation---and we also investigate the influence of add…

cond-mat.stat-mech2018★ 27 cited

First-Passage Duality

P. L. Krapivsky, S. Redner

We show that the distribution of times for a diffusing particle to first hit an absorber is \emph{independent} of the direction of an external flow field, when we condition on the…

cond-mat.stat-mech2018★ 6 cited

Evaluating the Jones polynomial with tensor networks

Konstantinos Meichanetzidis, Stefanos Kourtis

We introduce tensor network contraction algorithms for the evaluation of the Jones polynomial of arbitrary knots. The value of the Jones polynomial of a knot maps to the partition…

cond-mat.stat-mech2018★ 1 cited

Pinned, locked, pushed, and pulled traveling waves in structured environments

Ching-Hao Wang, Sakib Matin, Ashish B. George +1

Traveling fronts describe the transition between two alternative states in a great number of physical and biological systems. Examples include the spread of beneficial mutations, c…

cond-mat.stat-mech2018★ 12 cited

Analysis of fluctuations in the first return times of random walks on regular branched networks

Junhao Peng, Guoai Xu, Renxiang Shao +2

The first return time (FRT) is the time it takes a random walker to first return to its original site, and the global first passage time (GFPT) is the first passage time for a rand…

cond-mat.stat-mech2018★ 42 cited

Fast counting with tensor networks

Stefanos Kourtis, Claudio Chamon, Eduardo R. Mucciolo +1

We introduce tensor network contraction algorithms for counting satisfying assignments of constraint satisfaction problems (#CSPs). We represent each arbitrary #CSP formula as a te…

cond-mat.stat-mech2018★ 1 cited

Assortative Exchange Processes

P. L. Krapivsky

In exchange processes clusters composed of elementary building blocks, monomers, undergo binary exchange in which a monomer is transferred from one cluster to another. In assortati…

cond-mat.stat-mech2018★ 45 cited

Semiclassical echo dynamics in the Sachdev-Ye-Kitaev model

Markus Schmitt, Dries Sels, Stefan Kehrein +1

The existence of a quantum butterfly effect in the form of exponential sensitivity to small perturbations has been under debate for a long time. Lately, this question gained increa…

cond-mat.stat-mech2018★ 79 cited

Asymptotic Prethermalization in Periodically Driven Classical Spin Chains

Owen Howell, Phillip Weinberg, Dries Sels +2

We reveal a continuous dynamical heating transition between a prethermal and an infinite-temperature stage in a clean, chaotic periodically driven classical spin chain. The transit…

cond-mat.stat-mech2018★ 58 cited

Detecting signals of weakly first-order phase transitions in two-dimensional Potts models

Shumpei Iino, Satoshi Morita, Anders W. Sandvik +1

We investigate the first-order phase transitions of the -state Potts models with , and on the two-dimensional square lattice, using Monte Carlo simulations. At…