57 citations · 194 across the 17 of their papers we have counts for
17 papers
Pure and physics-guided deep learning approaches for spatio-temporal groundwater level prediction
Matteo Salis, Gabriele Sartor, Rosa Meo +2
Groundwater represents a key element of the water cycle, yet it exhibits complex and context-dependent relationships that make its modeling challenging. Theory-based models have be…
Free mutual information and higher-point OTOCs
Shreya Vardhan, Jinzhao Wang
We introduce a quantity called the free mutual information (FMI), adapted from concepts in free probability theory, as a new physical measure of quantum chaos. This quantity captur…
Chirality, magic, and quantum correlations in multipartite quantum states
Shreya Vardhan, Bowen Shi, Isaac H. Kim +1
We introduce a notion of chirality for generic quantum states. A chiral state is defined as a state which cannot be transformed into its complex conjugate in a local product basis…
Estimating time in quantum chaotic systems and black holes
Haifeng Tang, Shreya Vardhan, Jinzhao Wang
We characterize new universal features of the dynamics of chaotic quantum many-body systems, by considering a hypothetical task of "time estimation." Most macroscopic observables i…
Effective field theories of dissipative fluids with one-form symmetries
Shreya Vardhan, Sašo Grozdanov, Samuel Leutheusser +1
A system with a one-form global symmetry at finite temperature can be viewed as a dissipative fluid of string-like objects. In this work, we classify and construct the most general…
Entanglement dynamics from universal low-lying modes
Shreya Vardhan, Sanjay Moudgalya
Information-theoretic quantities such as Renyi entropies show a remarkable universality in their late-time behaviour across a variety of chaotic many-body systems. Understanding ho…
Scramblon loops
Douglas Stanford, Shreya Vardhan, Shunyu Yao
In large chaotic quantum systems, the butterfly effect is mediated by a collective field mode known as the ``scramblon.'' We study self-interactions of the scramblon in variant…
Petz recovery from subsystems in conformal field theory
Shreya Vardhan, Annie Y. Wei, Yijian Zou
We probe the multipartite entanglement structure of the vacuum state of a CFT in 1+1 dimensions, using recovery operations that attempt to reconstruct the density matrix in some re…
Local dynamics and the structure of chaotic eigenstates
Zhengyan Darius Shi, Shreya Vardhan, Hong Liu
We identify new universal properties of the energy eigenstates of chaotic systems with local interactions, which distinguish them both from integrable systems and from non-local ch…
The black hole interior from non-isometric codes and complexity
Chris Akers, Netta Engelhardt, Daniel Harlow +2
Quantum error correction has given us a natural language for the emergence of spacetime, but the black hole interior poses a challenge for this framework: at late times the apparen…
Strong-field magnetohydrodynamics for neutron stars
Shreya Vardhan, Sašo Grozdanov, Samuel Leutheusser +1
We present a formulation of magnetohydrodynamics which can be used to describe the evolution of strong magnetic fields in neutron star interiors. Our approach is based on viewing m…
Mixed-state entanglement and information recovery in thermalized states and evaporating black holes
Shreya Vardhan, Jonah Kudler-Flam, Hassan Shapourian +1
We study the universal behavior of quantum information-theoretic quantities in thermalized isolated quantum many-body systems and evaporating black holes. In particular, we study a…
Bound entanglement in thermalized states and black hole radiation
Shreya Vardhan, Jonah Kudler-Flam, Hassan Shapourian +1
We study the mixed-state entanglement structure of chaotic quantum many-body systems at late times using the recently developed . A rich entangl…
Entanglement entropies of equilibrated pure states in quantum many-body systems and gravity
Hong Liu, Shreya Vardhan
We develop a universal approximation for the Renyi entropies of a pure state at late times in a non-integrable many-body system, which macroscopically resembles an equilibrium dens…
A dynamical mechanism for the Page curve from quantum chaos
Hong Liu, Shreya Vardhan
If the evaporation of a black hole formed from a pure state is unitary, the entanglement entropy of the Hawking radiation should follow the Page curve, increasing from zero until n…
Void formation in operator growth, entanglement, and unitarity
Hong Liu, Shreya Vardhan
The structure of the Heisenberg evolution of operators plays a key role in explaining diverse processes in quantum many-body systems. In this paper, we discuss a new universal feat…
Characterizing time-irreversibility in disordered fermionic systems by the effect of local perturbations
Shreya Vardhan, Giuseppe De Tomasi, Markus Heyl +2
We study the effects of local perturbations on the dynamics of disordered fermionic systems in order to characterize time-irreversibility. We focus on three different systems, the…