23 citations · 52 across the 9 of their papers we have counts for
9 papers
Dynamical signatures of Hardcore-Boson Supersolid on the Triangular Lattice
Xingchuan Zhu, Qingyang Guo, Junsong Sun +6
We investigate the dynamical signatures of the supersolid phase in the triangular-lattice hardcore Bose-Hubbard model via large-scale quantum Monte Carlo simulations and linear spi…
Non-Bloch Quantum Geometry of Non-Hermitian Systems
Junsong Sun, Huaiming Guo, Bohm-Jung Yang
We formulate quantum geometry for non-Hermitian systems under open boundary conditions. By defining quantum-geometric quantities in both real-space and non-Bloch representations, w…
Geometric Superfluid Weight in Quasicrystals
Junsong Sun, Huaiming Guo, Bohm-Jung Yang
We study the geometric contribution to the superfluidity in quasicrystals in which the conventional momentum-space quantum geometric tensor cannot be defined due to the lack of tra…
Inner non-Hermitian skin effect on Bethe lattice
Junsong Sun, Chang-An Li, Shiping Feng +1
We investigate the non-Hermitian Su-Schrieffer-Heeger (SSH) model on Bethe lattice, revealing a novel localization phenomenon coined inner non-Hermitian skin effect. This effect is…
Non-Hermitian Quantum Fractals
Junsong Sun, Chang-An Li, Qingyang Guo +5
The first quantum fractal discovered in physics is the Hofstadter butterfly. It stems from large external magnetic fields. We discover instead a new class of non-Hermitian quantum…
Exact Demonstration of pair-density-wave superconductivity in the -Hubbard model
Xingchuan Zhu, Junsong Sun, Shou-Shu Gong +4
Describing and achieving `unconventional' superconductivity remains a forefront challenge in quantum many-body physics. Here we use a unitary mapping, combined with the well-establ…
Reweight-annealing method for evaluating the partition function via quantum Monte Carlo calculations
Yi-Ming Ding, Jun-Song Sun, Nvsen Ma +3
Efficient and accurate algorithm for partition function, free energy and thermal entropy calculations is of great significance in statistical physics and quantum many-body physics.…
Pseudo-magnetic fields in square lattices
Junsong Sun, Xingchuan Zhu, Tianyu Liu +2
We have investigated the effects of strain on two-dimensional square lattices and examined the methods for inducing pseudo-magnetic fields. In both the columnar and staggered -f…
Klein-bottle quadrupole insulators and Dirac semimetals
Chang-An Li, Junsong Sun, Song-Bo Zhang +2
The Benalcazar-Bernevig-Hughes (BBH) quadrupole insulator model is a cornerstone model for higher-order topological phases. It requires π-flux threading through each plaquette of t…