387 citations · 2.1k across the 79 of their papers we have counts for
24 papers · 1 filter
Distribution of currents in a system of active particles with biased hops and Ising interactions
Evgeniy Khain, Shriram Ramesh, Vladimir Chernyak
We consider an ensemble of particles performing a biased random walk on a two-dimensional lattice. Due to the adhesion between particles (nearest-neighbor Ising interactions), the…
Nonadiabatic Phase Transition with Broken Chiral Symmetry
Bin Yan, Vladimir Y. Chernyak, Wojciech H. Zurek +1
We explore nonadiabatic quantum phase transitions in an Ising spin chain with a linearly time-dependent transverse field and two different spins per unit cell. Such a spin system p…
Stochastic Equation of Motion Approach to Fermionic Dissipative Dynamics. I. Formalism
Lu Han, Arif Ullah, Yun-An Yan +3
In this work, we establish formally exact stochastic equations of motion (SEOM) theory to describe the dissipative dynamics of fermionic open systems. The construction of the SEOM…
Stochastic Equation of Motion Approach to Fermionic Dissipative Dynamics. II. Numerical Implementation
Arif Ullah, Lu Han, Yun-An Yan +3
This paper provides a detailed account of the numerical implementation of the stochastic equation of motion (SEOM) method for the dissipative dynamics of fermionic open quantum sys…
Stochastic Representation of Non-Markovian Fermionic Quantum Dissipation
Lu Han, Vladimir Chernyak, Yun-An Yan +2
Quantum Brownian motion plays a fundamental role in many areas of modern physics. In the path-integral formulation, the environmental quantum fluctuations driving the system dynami…
Ground state properties of sub-Ohmic spin-boson model with simultaneous diagonal and off-diagonal coupling
Nengji Zhou, Lipeng Chen, Yang Zhao +2
By employing the variational approach, density matrix renormalization group (DMRG), exact diagonalization as well as symmetry and mean-field analyses, the ground state properties o…