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5 papers · 1 filter
Sine-Gordon model coupled with a free scalar field emergent in the low-energy phase dynamics of a mixture of pseudospin-1/2 Bose gases with interspecies spin exchange
Li Ge, Yu Shi
Using the approach of low-energy effective field theory, the phase diagram is studied for a mixture of two species of pseudospin-$\1/2$ Bose atoms with interspecies spin-exchange.…
Universal impurity-induced bound state in topological superfluids
Hui Hu, Lei Jiang, Han Pu +2
We predict a universal mid-gap bound state in topological superfluids, induced by either non-magnetic or magnetic impurities in the strong scattering limit. This universal state is…
Orbital elementary excitations as probes of entanglement and quantum phase transitions of collective spins in an entangled Bose-Einstein condensate
Rukuan Wu, Yu Shi
A mixture of two species of pseudospin-1/2 Bose gases exhibits interesting interplay between spin and orbital degrees of freedom. Expectation values of various quantities of the co…
Polarized entangled Bose-Einstein condensation
Jinglong Wang, Yu Shi
We consider a mixture of two distinct species of atoms of pseudospin-1/2 with both intraspecies and Interspecies spin-exchange interactions, and find all the ground stats in a gene…
Single Impurity In Ultracold Fermi Superfluids
Lei Jiang, Leslie O. Baksmaty, Hui Hu +2
The role of impurities as experimental probes in the detection of quantum material properties is well appreciated. Here we study the effect of a single classical magnetic impurity…