3 papers
cond-mat.quant-gas2022
Simulation and detection of Weyl fermions in ultracold Fermi gases with Raman-assisted spin-orbit coupling
Cheng-Gong Liang, Ze-Gang Liu, Wei Han
Weyl fermion, also referred to as pseudo-magnetic monopole in momentum space, is an undiscovered massless elementary particle with half-integer spin predicted according to relativi…
quant-ph2021
Improving the Precision of Optical Metrology by Detecting Fewer Photons
Peng Yin, Wen-Hao Zhang, Liang Xu +13
In optical metrological protocols to measure physical quantities, it is, in principle, always beneficial to increase photon number to improve measurement precision. However, practi…
quant-ph2018
Topological indexes in symmetry preserving dynamics
Ze-Gang Liu, Long Xiong, Beibing Huang +2
The quench dynamics of topological phases have received intensive investigations in recent years. In this work, we prove exactly that the topological invariants for both $\mathbb{Z…