96 citations · 366 across the 12 of their papers we have counts for
10 papers · 1 filter
Hidden long-range order in a spin-orbit coupled two-dimensional Bose gas
Shih-Wei Su, I-Kang Liu, Shih-Chuan Gou +3
A spin-orbit coupled two-dimensional (2D) Bose gas is shown to simultaneously possess quasi and true long-range order in the total and relative phase sectors, respectively. The tot…
The universe on a table top: engineering quantum decay of a relativistic scalar field from a metastable vacuum
Oleksandr Fialko, Bogdan Opanchuk, Andrei I. Sidorov +2
The quantum decay of a relativistic scalar field from a metastable state ("false vacuum decay") is a fundamental idea in quantum field theory and cosmology. This occurs via local f…
Motion of an Impurity in a Bose-Einstein Condensate with Weyl Spin-Orbit Coupling: Non-collinear Drag Force and Anisotropic Critical Velocity
Renyuan Liao, Oleksandr Fialko, Joachim Brand +1
We consider the motion of a point-like impurity through a three-dimensional two-component Bose-Einstein condensate subject to Weyl spin-orbit coupling. Using linear-response theory…
Oscillons in coupled Bose-Einstein condensates
Shih-Wei Su, Shih-Chuan Gou, I-Kang Liu +3
Long-lived, spatially localized, and temporally oscillating nonlinear excitations are predicted by numerical simulation of coupled Gross-Pitaevskii equations. These oscillons close…
Thermalization in closed quantum systems: semiclassical approach
Jayson G. Cosme, Oleksandr Fialko
Thermalization in closed quantum systems can be explained either by means of the eigenstate thermalization hypothesis or the concept of canonical typicality. Both concepts are base…
Spin-Orbit Coupled Bose Gases at Finite Temperatures
Renyuan Liao, Oleksandr Fialko
Spin-orbit coupling is predicted to have dramatic effects on thermal properties of a two-component atomic Bose gas. We show that in three spatial dimensions it lowers the critical…
Quantum simulations of the early universe
Bogdan Opanchuk, Rodney Polkinghorne, Oleksandr Fialko +2
A procedure is described whereby a linearly coupled spinor Bose condensate can be used as a physically accessible quantum simulator of the early universe. In particular, an experim…
Kibble-Zurek scaling and its breakdown for spontaneous generation of Josephson vortices in Bose-Einstein condensates
Shih-Wei Su, Shih-Chuan Gou, Ashton Bradley +2
Atomic Bose-Einstein condensates confined to a dual-ring trap support Josephson vortices as topologically stable defects in the relative phase. We propose a test of the scaling law…
Nucleation in finite topological systems during continuous metastable quantum phase transitions
Oleksandr Fialko, Marie-Coralie Delattre, Joachim Brand +1
Finite topological quantum systems can undergo continuous metastable quantum phase transitions to change their topological nature. Here we show how to nucleate the transition betwe…
Isolated quantum heat engine
O. Fialko, D. Hallwood
We present a theoretical and numerical analysis of a quantum system that is capable of functioning as a heat engine. This system could be realized experimentally using cold bosonic…