47 citations · 309 across the 23 of their papers we have counts for
4 papers · 1 filter
Ensemble nonequivalence and Bose-Einstein condensation in weighted networks
Qi Zhang, Diego Garlaschelli
The asymptotic (non)equivalence of canonical and microcanonical ensembles, describing systems with soft and hard constraints respectively, is a central concept in statistical physi…
The Non-Hermitian quantum mechanics and its canonical structure
Qi Zhang
The non-Hermitian Schrödinger equation is re-expressed generally in the form of Hamilton's canonical equation without any approximation. Its quantization called non-Hermitian quant…
Non-Hermitian effects of the intrinsic signs in topologically ordered wavefunctions
Qi Zhang, Wen-Tao Xu, Zi-Qi Wang +1
Negative signs in many-body wavefunctions play an important role in quantum mechanics. The ground-state wavefunction of double semion model on a two-dimensional hexagonal lattice c…
Tensor network approach to phase transitions of a non-Abelian topological phase
Wen-Tao Xu, Qi Zhang, Guang-Ming Zhang
The non-abelian topological phase with Fibonacci anyons minimally supports universal quantum computation. In order to investigate the possible phase transitions out of the Fibonacc…