Multiple quantum Mpemba effect: exceptional points and oscillations

AK Chatterjee, S Takada, H Hayakawa - Physical Review A, 2024 - APS
We explore the role of exceptional points and complex eigenvalues on the occurrence of the
quantum Mpemba effect. To this end, we study a two-level driven dissipative system …

Variational Quantum Simulation of Lindblad Dynamics via Quantum State Diffusion

J Luo, K Lin, X Gao - The Journal of Physical Chemistry Letters, 2024 - ACS Publications
Quantum simulation of dynamics in open quantum systems is crucial but poses a significant
challenge due to the non-Hermitian nature leading to nonunitary evolution and the limited …

Accelerating relaxation dynamics in open quantum systems with Liouvillian skin effect

Z Wang, Y Lu, Y Peng, R Qi, Y Wang, J Jie - Physical Review B, 2023 - APS
We investigate a non-Hermitian model featuring nonreciprocal gradient hoppings. Through
an in-depth analysis of the Liouvillian spectrum and dynamics, we confirm the emergence of …

A brief journey through collision models for multipartite open quantum dynamics

M Cattaneo, GL Giorgi, R Zambrini… - Open Systems & …, 2022 - World Scientific
The quantum collision models are a useful method to describe the dynamics of an open
quantum system by means of repeated interactions between the system and some particles …

Predicting the onset of quantum synchronization using machine learning

F Mahlow, B Çakmak, G Karpat, İ Yalçınkaya… - Physical Review A, 2024 - APS
We have applied a machine learning algorithm to predict the emergence of environment-
induced spontaneous synchronization between two qubits in an open system setting. In …

Time-crystal phase emerging from a qubit network under unitary random operations

H Wang, J Wang - Physical Review A, 2023 - APS
In this paper, we report findings of nonstationary behavior observed in a fully connected
qubit network, utilizing a random unitary evolution model in open quantum system theory …

Quantum thermodynamics of boundary time-crystals

F Carollo, I Lesanovsky, M Antezza… - Quantum Science and …, 2024 - iopscience.iop.org
Time-translation symmetry breaking is a mechanism for the emergence of non-stationary
many-body phases, so-called time-crystals, in Markovian open quantum systems. Dynamical …

Emergent Continuous Time Crystal in Dissipative Quantum Spin System without Driving

S Yang, Z Wang, L Fu, J Jie - arXiv preprint arXiv:2403.08476, 2024 - arxiv.org
Time crystal, a nonequilibrium phenomenon extending spontaneous symmetry breaking into
the temporal dimension, holds fundamental significance in understanding quantum many …

Witnessing non-Markovianity with Gaussian quantum steering in a collision model

Y Li, X Li, J Jin - Physical Review A, 2024 - APS
The nonincreasing feature of temporal quantum steering under a completely positive trace-
preserving (CPTP) map, as proposed by Chen et al.[Phys. Rev. Lett. 116, 020503 (2016) …

Structured quantum collision models: generating coherence with thermal resources

S Cusumano, G De Chiara - New Journal of Physics, 2024 - iopscience.iop.org
Quantum collision models normally consist of a system interacting with a set of ancillary
units representing the environment. While these ancillary systems are usually assumed to …