Ultra-stable charging of fast-scrambling SYK quantum batteries
A bstract Collective behavior strongly influences the charging dynamics of quantum batteries
(QBs). Here, we study the impact of nonlocal correlations on the energy stored in a system of …
(QBs). Here, we study the impact of nonlocal correlations on the energy stored in a system of …
Diagnosing quantum chaos in many-body systems using entanglement as a resource
Classical chaotic systems exhibit exponentially diverging trajectories due to small
differences in their initial states. The analogous diagnostic in quantum many-body systems …
differences in their initial states. The analogous diagnostic in quantum many-body systems …
Real time dynamics from low point correlators in 2d BCFT
S Das, B Ezhuthachan, A Kundu - Journal of High Energy Physics, 2019 - Springer
A bstract In this article, we demonstrate how a 3-point correlation function can capture the
out-of-time-ordered features of a higher point correlation function, in the context of a …
out-of-time-ordered features of a higher point correlation function, in the context of a …
The generalized OTOC from supersymmetric quantum mechanics—Study of random fluctuations from eigenstate representation of correlation functions
KY Bhagat, B Bose, S Choudhury, S Chowdhury… - Symmetry, 2020 - mdpi.com
The concept of the out-of-time-ordered correlation (OTOC) function is treated as a very
strong theoretical probe of quantum randomness, using which one can study both chaotic …
strong theoretical probe of quantum randomness, using which one can study both chaotic …
Locality, correlations, information, and non-hermitian quantum systems
B Barch - Physical Review B, 2024 - APS
Local non-Hermitian (NH) quantum systems generically exhibit breakdown of Lieb-
Robinson (LR) bounds, motivating study of whether new locality measures might shed light …
Robinson (LR) bounds, motivating study of whether new locality measures might shed light …
[HTML][HTML] Spectral form factor as an OTOC averaged over the Heisenberg group
We prove that in bosonic quantum mechanics the two-point spectral form factor can be
obtained as an average of the two-point out-of-time ordered correlation function, with the …
obtained as an average of the two-point out-of-time ordered correlation function, with the …
Extended eigenstate thermalization and the role of FZZT branes in the Schwarzian theory
P Nayak, J Sonner, M Vielma - Journal of High Energy Physics, 2020 - Springer
A bstract In this paper we provide a universal description of the behavior of the basic
operators of the Schwarzian theory in pure states. When the pure states are energy …
operators of the Schwarzian theory in pure states. When the pure states are energy …
One-shot quantum error correction of classical and quantum information
Y Nakata, E Wakakuwa, H Yamasaki - Physical Review A, 2021 - APS
Quantum error correction (QEC) is one of the central concepts in quantum information
science and also has wide applications in fundamental physics. The capacity theorems …
science and also has wide applications in fundamental physics. The capacity theorems …
Early-time and late-time quantum chaos
CT Ma - International Journal of Modern Physics A, 2020 - World Scientific
We show the relation between the Heisenberg averaging of regularized 2-point out-of-time
ordered correlation function and the 2-point spectral form factor in bosonic quantum …
ordered correlation function and the 2-point spectral form factor in bosonic quantum …
Design constraints for Unruh-DeWitt quantum computers
Abstract The Unruh-DeWitt particle detector model has found success in demonstrating
quantum information channels with non-zero channel capacity between qubits and quantum …
quantum information channels with non-zero channel capacity between qubits and quantum …