TY - JOUR
T1 - Coherent states in the bilayer fractional quantum Hall ferromagnet
AU - Nakajima, Tatsuya
AU - Aoki, Hideo
N1 - Funding Information:
We are grateful to Shin Takagi, Tetsuo Ogawa, Satoru Okumura and Yasuo Okajima for valuable discussions on the coherent state, and to Komajiro Niizeki for valuable comments. This work was in part supported by a Grant-in-Aid from the Ministry of Education, Science and Culture, Japan.
PY - 1998/6/17
Y1 - 1998/6/17
N2 - We find that we can use a 'squeezed-vacuum' state conceived in quantum optics to give the ground-state wave function for the bilayer quantum Hall system at the total Landau-level filling of ν = 1/m (m: odd integer). This is derived in the boson approximation, where a particle-hole pair creation across the symmetric-antisymmetric gap, ΔSAS, is regarded as a boson. The degree of squeezing is given as a function of the layer separation and ΔSAS.
AB - We find that we can use a 'squeezed-vacuum' state conceived in quantum optics to give the ground-state wave function for the bilayer quantum Hall system at the total Landau-level filling of ν = 1/m (m: odd integer). This is derived in the boson approximation, where a particle-hole pair creation across the symmetric-antisymmetric gap, ΔSAS, is regarded as a boson. The degree of squeezing is given as a function of the layer separation and ΔSAS.
KW - Coherent state
KW - Double layer electron systems
KW - Excitons
KW - Quantum Hall effect
KW - Squeezed state
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U2 - 10.1016/S0921-4526(98)00324-X
DO - 10.1016/S0921-4526(98)00324-X
M3 - Article
AN - SCOPUS:0032091724
SN - 0921-4526
VL - 249-251
SP - 828
EP - 831
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
ER -