3 papers
quant-ph2020
The fate of the false vacuum: Finite temperature, entropy and topological phase in quantum simulations of the early universe
King Lun Ng, Bogdan Opanchuk, Manushan Thenabadu +2
Despite being at the heart of the theory of the "Big Bang" and cosmic inflation, the quantum field theory prediction of false vacuum tunneling has not been tested. To address the e…
cond-mat.quant-gas2018
Nonlocal pair correlations in a higher-order Bose gas soliton
King Lun Ng, Bogdan Opanchuk, Margaret D. Reid +1
The truncated Wigner and positive-P phase-space representations are used to study the dynamics of a one-dimensional Bose gas. This allows calculations of the breathing quantum dyna…
quant-ph2018
Phase-space representations of thermal Bose-Einstein condensates
King Ng, Rodney Polkinghorne, Bogdan Opanchuk +1
Phase-space methods allow one to go beyond the mean-field approximation to simulate the quantum dynamics of interacting fields. Here, we obtain a technique for initializing either…