Tensor network approach to the fully frustrated XY model on a kagome lattice with a fractional vortex-antivortex pairing transition
FF Song, GM Zhang - Physical Review B, 2023 - APS
We have developed a tensor network approach to the two-dimensional fully frustrated
classical XY spin model on the kagome lattice, and clarified the nature of the possible phase …
classical XY spin model on the kagome lattice, and clarified the nature of the possible phase …
Tensor network approach to the two-dimensional fully frustrated XY model and a chiral ordered phase
FF Song, GM Zhang - Physical Review B, 2022 - APS
A general framework is proposed to solve the two-dimensional (2D) fully frustrated XY model
for the Josephson junction arrays in a perpendicular magnetic field. The essential idea is to …
for the Josephson junction arrays in a perpendicular magnetic field. The essential idea is to …
Phase diagram of generalized XY model using the tensor renormalization group
We use the higher-order tensor renormalization group method to study the two-dimensional
generalized XY model that admits integer and half-integer vortices. This model is the …
generalized XY model that admits integer and half-integer vortices. This model is the …
[HTML][HTML] Quantum simulations with bilayer 2D Bose gases in multiple-RF-dressed potentials
A Beregi, C Foot, S Sunami - AVS Quantum Science, 2024 - pubs.aip.org
Multiple-RF (MRF) dressing allows trapping of ultracold atoms in novel spatial geometries,
such as highly controllable bilayer structures for two-dimensional (2D) ultracold gases …
such as highly controllable bilayer structures for two-dimensional (2D) ultracold gases …
Phase coherence of pairs of cooper pairs as quasi-long-range order of half-vortex pairs in a two-dimensional bilayer system
FF Song, GM Zhang - Physical Review Letters, 2022 - APS
It is known that the loss of phase coherence of Cooper pairs in two-dimensional
superconductivity corresponds to the unbinding of vortex-antivortex pairs with the quasi-long …
superconductivity corresponds to the unbinding of vortex-antivortex pairs with the quasi-long …
Unsupervised learning of phase transitions via modified anomaly detection with autoencoders
KK Ng, MF Yang - Physical Review B, 2023 - APS
In this paper, a modified method of anomaly detection using convolutional autoencoders is
employed to predict phase transitions in several statistical mechanical models on a square …
employed to predict phase transitions in several statistical mechanical models on a square …
Emergent potts order in a coupled hexatic-nematic XY model
Many two-dimensional physical systems ranging from atomic-molecular condensates to low-
dimensional superconductors and liquid-crystal films are described by coupled XY models …
dimensional superconductors and liquid-crystal films are described by coupled XY models …
Absence of floating phase in superconductors with time-reversal symmetry breaking on any lattice
AC Yuan - Physical Review B, 2024 - APS
Due to the interplay of multicomponent order parameters [eg, a twisted bilayer
superconductor with interlayer Josephson coupling or a frustrated (n≥ 3)-band …
superconductor with interlayer Josephson coupling or a frustrated (n≥ 3)-band …
Two-stage melting of an intercomponent Potts long-range order in two dimensions
FF Song, GM Zhang - Physical Review B, 2023 - APS
The interplay of topology and competing interactions can induce enriched phases and
phase transitions at finite temperatures. We consider a weakly coupled two-dimensional …
phase transitions at finite temperatures. We consider a weakly coupled two-dimensional …
Investigating the two-dimensional generalized XY model using tensor networks
The critical behavior of the two-dimensional XY model has been explored in the literature
using various methods. They include the high-temperature expansion (HTE) method, Monte …
using various methods. They include the high-temperature expansion (HTE) method, Monte …