Zobrazeno 1 - 10
of 755
pro vyhledávání: '"Xu, Xiao‐Yan"'
Autor:
Hong, Tu, Xu, Xiao Yan
Non-Fermi liquids are an important topic in condensed matter physics, as their characteristics challenge the framework of traditional Fermi liquid theory and reveal the complex behavior of electrons in strongly interacting systems. Despite some progr
Externí odkaz:
http://arxiv.org/abs/2410.13858
Autor:
Sun, Fanjie, Xu, Xiao Yan
The study of strongly correlated fermionic systems, crucial for understanding condensed matter physics, has been significantly advanced by numerical computational methods. Among these, the Determinant Quantum Monte Carlo (DQMC) method stands out for
Externí odkaz:
http://arxiv.org/abs/2404.09989
Autor:
Dai, Zenan, Xu, Xiao Yan
Residual entropy, indicative of the degrees of freedom in a system at absolute zero, is a cornerstone for understanding quantum and classical ground states. Despite its critical role in elucidating low-temperature phenomena and ground state degenerac
Externí odkaz:
http://arxiv.org/abs/2402.17827
Autor:
Wang, Fo-Hong, Xu, Xiao Yan
Many-body entanglement unveils additional aspects of quantum matter and offers insights into strongly correlated physics. While ground-state entanglement has received much attention in the past decade, the study of mixed-state quantum entanglement us
Externí odkaz:
http://arxiv.org/abs/2312.14155
We investigate the role of superconducting phase fluctuations in generic 2D superconductors. For nodal d-wave superconductors, it is found that the thermal (static) phase fluctuations in the normal state significantly broaden the d-wave nodes, and le
Externí odkaz:
http://arxiv.org/abs/2310.05376
Autor:
Sun, Fanjie, Xu, Xiao Yan
Publikováno v:
Phys. Rev. B 109, 235140 (2024)
Determinant quantum Monte Carlo (DQMC) is a widely used unbiased numerical method for simulating strongly correlated electron systems. However, the update process in DQMC is often a bottleneck for its efficiency. To address this issue, we propose a g
Externí odkaz:
http://arxiv.org/abs/2308.12005
Autor:
Xu, Xiao Yan, Grover, Tarun
Publikováno v:
Phys. Rev. B 109, 155112 (2024)
We investigate a 2+1-D interacting Dirac semimetal with onsite flavor SU(2) symmetry. Topological considerations imply that the skyrmions in the flavor-symmetry-breaking phase carry electron quantum numbers, motivating a dual bosonized low energy des
Externí odkaz:
http://arxiv.org/abs/2304.13716
Publikováno v:
Phys.Rev.B 108,195112(2023)
Lately there are many SLAC fermion investigations on the (2+1)D Gross-Neveu criticality of a single Dirac cone [1,2]. While the SLAC fermion construction indeed gives rise to the linear energy-momentum relation for all lattice momenta at the non-inte
Externí odkaz:
http://arxiv.org/abs/2210.04272
Publikováno v:
Phys. Rev. B 106, 155159 (2022)
Inspired by our recent works[1, 2] of SU(2) and SU(4) Dirac fermions subjected to plaquette interactions on square lattice, here we extend the large-scale quantum Monte Carlo investigations to the phase digram of correlated Dirac fermions with SU(6)
Externí odkaz:
http://arxiv.org/abs/2207.13349
Publikováno v:
PhysRevB.106.115149(2022)
At sufficiently low temperatures, interacting electron systems tend to develop orders. Exceptions are quantum critical point (QCP) and quantum spin liquid (QSL), where fluctuations prevent the highly entangled quantum matter to an ordered state down
Externí odkaz:
http://arxiv.org/abs/2205.07173