Abstract
We study two-component (or pseudospin-1/2) Bose gases in a strong synthetic magnetic field. Using exact diagonalization, we show that a bosonic analog of an integer quantum Hall state with no intrinsic topological order appears at the total filling factor ν=1+1 when the strengths of intracomponent and intercomponent interactions are comparable with each other. This provides a prime example of a symmetry-protected topological phase in a controlled setting of quantum gases. The real-space entanglement spectrum of this state is found to be comprised of counterpropagating chiral modes consistent with the edge theory derived from an effective Chern-Simons theory.
| Original language | English |
|---|---|
| Article number | 090401 |
| Journal | Physical Review Letters |
| Volume | 111 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2013 Aug 26 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Integer quantum hall state in two-component bose gases in a synthetic magnetic field. / Furukawa, Shunsuke; Ueda, Masahito.
In: Physical Review Letters, Vol. 111, No. 9, 090401, 26.08.2013.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Integer quantum hall state in two-component bose gases in a synthetic magnetic field
AU - Furukawa, Shunsuke
AU - Ueda, Masahito
PY - 2013/8/26
Y1 - 2013/8/26
N2 - We study two-component (or pseudospin-1/2) Bose gases in a strong synthetic magnetic field. Using exact diagonalization, we show that a bosonic analog of an integer quantum Hall state with no intrinsic topological order appears at the total filling factor ν=1+1 when the strengths of intracomponent and intercomponent interactions are comparable with each other. This provides a prime example of a symmetry-protected topological phase in a controlled setting of quantum gases. The real-space entanglement spectrum of this state is found to be comprised of counterpropagating chiral modes consistent with the edge theory derived from an effective Chern-Simons theory.
AB - We study two-component (or pseudospin-1/2) Bose gases in a strong synthetic magnetic field. Using exact diagonalization, we show that a bosonic analog of an integer quantum Hall state with no intrinsic topological order appears at the total filling factor ν=1+1 when the strengths of intracomponent and intercomponent interactions are comparable with each other. This provides a prime example of a symmetry-protected topological phase in a controlled setting of quantum gases. The real-space entanglement spectrum of this state is found to be comprised of counterpropagating chiral modes consistent with the edge theory derived from an effective Chern-Simons theory.
UR - http://www.scopus.com/inward/record.url?scp=84884225345&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84884225345&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.111.090401
DO - 10.1103/PhysRevLett.111.090401
M3 - Article
AN - SCOPUS:84884225345
VL - 111
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 9
M1 - 090401
ER -