Non-Equilibrium Quantum Many-Body Physics with Quantum CircuitsThese are the notes for the 4.5-hour course with the same title that I delivered in August 2025 at the Les Houches summer school ``Exact Solvability and Quantum Information''. In these notes…Bruno Bertini·May 20, 2026SaveLearn
Random Walks Across Dimensions: Exploring Simplicial ComplexesWe introduce a novel operator to describe a random walk process on a simplicial complex. Walkers are allowed to wonder across simplices of various dimensions, bridging nodes to edges, and edges to…Diego Febbe, Duccio Fanelli, Timoteo Carletti·May 20, 2026SaveLearn
Macroscopic localization and collective memory in Poisson renewal resettingStochastic renewal processes are ubiquitous across physics, biology, and the social sciences. Here, we show that continuous-time renewal dynamics can naturally produce a mixed discrete-continuous…Ohad Vilk·May 20, 2026SaveLearn
Schrödinger-invariance in phase-ordering kineticsThe generic shape of the single-time and two-time correlators in non-equilibrium phase-ordering kinetics with z=2 is obtained from the co-variance of the four-point response functions. Their…Stoimen Stoimenov, Malte Henkel·May 20, 2026SaveLearn
Schrödinger-invariance in non-equilibrium critical dynamicsThe scaling functions of single-time and two-time correlators in systems undergoing non-equilibrium critical dynamics with dynamical exponent z=2 are predicted from a new time-dependent…Malte Henkel, Stoimen Stoimenov·May 20, 2026SaveLearn
Cell State Transitions Beyond the Small-Noise LimitState transitions are fundamental in biological systems but challenging to observe directly. Here, we present the first single-cell observation of state transitions in a synthetic bacterial genetic…Jianzhe Wei, Jingwen Zhu, Pan Chu et al.·May 20, 2026SaveLearn
Higher-order contagion processes in 3.99 dimensionsHigher-order interactions have recently emerged as a promising framework for describing new dynamical phenomena in heterogeneous contagion processes. However, a fundamental open question is how to…Sandro Meloni, Andrea Gabrielli, Pablo Villegas·May 20, 2026SaveLearn
Targeting Clause Type Distributions: a Picklock for Random Satisfiability ProblemsOptimization problems such as the NP-complete 3-SAT provide an important benchmark for the difficult task of finding ground-states in strongly correlated many-body systems with rugged energy…J. Schwardt, J. C. Budich·May 19, 2026SaveLearn
Towards a Matrix Product Ansatz in Two DimensionsMatrix product ansatz (MPA) is a powerful framework for constructing exact steady state weights of one dimensional non-equilibrium stochastic processes; but its generalization to higher dimensions is…Chandraniva Guha Ray, Aikya Banerjee, P. K. Mohanty·May 19, 2026SaveLearn
Diffusive-to-Ballistic transition in a Persistent Random WalkWe study persistent random walk with time dependent velocity reversal probabilities and identify a criterion for a non-equilibrium dynamical transition. As a representative example, we consider a…Amit Pradhan, Reshmi Roy, Purusattam Ray·May 19, 2026SaveLearn
Non-equilibrium quantum dynamics of interacting integrable models by Monte Carlo sampling Lehmann representationsDetermining the dynamics of interacting integrable many-particle quantum systems at finite times after homogeneous quantum quenches is a long-standing challenge. We present a Monte Carlo sampling…Riccardo Senese, Fabian H. L. Essler·May 19, 2026SaveLearn
Ground-state Entropy of the Ising model on a Frustrated latticeWe report the ground-state entropy of a 2-d Ising model on the Shastry-Sutherland lattice. We also study a generalization of this model, where a constraint on the zero temperature allowed…B Sriram Shastry, Bill Sutherland, Frédéric Mila et al.·May 19, 2026SaveLearn
Proof of the absence of local conserved quantities in the Holstein modelAbsence of local conserved quantities, or nonintegrability, is often assumed when discussing various phenomena in quantum many-body systems, such as thermalization and transport. However, no concrete…Fuga Ishii, Mizuki Sanatani·May 19, 2026SaveLearn
Planckian dissipation from classical hydrodynamicsIn this work we ask what the self-consistency of a classical hydrodynamic description imposes on a quantum system. The quantum fluctuation-dissipation theorem, when read in the time domain, acts as a…Laura Foini, Jorge Kurchan, Silvia Pappalardi·May 19, 2026SaveLearn
Exact criteria for ground-state overlap dominance and dynamical quantum phase transitionsIt was recently conjectured and verified for the transverse-field Ising model [Phys. Rev. B 113, 165102 (2026)] that, after a sudden quench within the same equilibrium phase, the initial ground state…Taisanul Haque·May 19, 2026SaveLearn
Scalable accuracy gains from postselection in quantum error correcting codesDecoding stabilizer codes such as the surface and toric codes involves evaluating free-energy differences in a disordered statistical mechanics model, in which the randomness comes from the observed…Hongkun Chen, Daohong Xu, Grace M. Sommers et al.·May 19, 2026SaveLearn
Dynamical renormalization group analysis of O(n) model in steady shear flowWe study the critical behavior of the O(n) model under steady shear flow using a dynamical renormalization group (RG) method. Incorporating the strong anisotropy in scaling ansatz, which has been…Harukuni Ikeda, Hiroyoshi Nakano·May 19, 2026SaveLearn
The Thermodynamic Costs of Simple Linear RegressionThe construction of models from data is a significant contributor to the energetic costs of computation. Because of this, understanding how foundational thermodynamic bounds apply to modeling…Samuel H. D'Ambrosia, Sultan M. Daniels, Michael R. DeWeese et al.·May 18, 2026SaveLearn
Work to insert a particle into an active fluidThe chemical potential is defined as the work to quasi-statically add a particle to an equilibrium system. Inspired by this definition, we investigate how the work to add a particle to an active…Freddy A. Cisneros, Alexandre Solon, Jordan M. Horowitz·May 18, 2026SaveLearn
Non-Gaussianity of random quantum statesWe study the fermionic non-Gaussianity in typical quantum states, focusing on Haar random states of qubits with or without a global U(1) symmetry. Using the Weingarten calculus, we derive…Filiberto Ares, Sara Murciano, Pasquale Calabrese·May 18, 2026SaveLearn
Ordering, correlation functions and phase transitions in molecular systemsAlthough the classical density functional theory (DFT) of inhomogeneous fluids was formulated more than four decades ago, its application to broken symmetry phases of molecular systems remained a…Yashwant Singh·May 18, 2026SaveLearn
Energy-Weighted Site Percolation in Two DimensionsWe study a generalization of two-dimensional site percolation by assigning an energy cost to bonds between nearest-neighbor occupied sites. This leads to a competition between…Sayan Sircar, Kabir Ramola·May 18, 2026SaveLearn
Perturbation Theory of the Free Energy via the Mesoscopic Combined Partition FunctionWe develop a systematic perturbation theory for the Helmholtz free energy of a classical N-body system within the mesoscopic framework of~OsanoMeso,OsanoExtensivity. The combined…Bob Osano·May 18, 2026SaveLearn
Entropy additivity from exponential decay of correlations: a coarse-grained operator approachThermodynamic extensivity is commonly introduced as a postulate -- the homogeneity of degree one in thermodynamic potentials. We provide a constructive derivation of this property from microscopic…Bob Osano·May 18, 2026SaveLearn
Quantum Mpemba effect for operators in open systemsThe quantum Mpemba effect concerns with anomalous relaxation of quantum states that evolves either under unitary or non-unitary dynamics. In the context of open quantum systems, while most studies…Pitambar Bagui, Bijay Kumar Agarwalla·May 18, 2026SaveLearn