TY - JOUR
T1 - Quasicondensation of Bilayer Excitons in a Periodic Potential
AU - Lagoin, Camille
AU - Suffit, Stephan
AU - West, Kenneth
AU - Baldwin, Kirk
AU - Pfeiffer, Loren
AU - Holzmann, Markus
AU - Dubin, François
N1 - Publisher Copyright:
© 2021 American Physical Society.
PY - 2021/2/12
Y1 - 2021/2/12
N2 - We study two-dimensional excitons confined in a lattice potential, for high fillings of the lattice sites. We show that a quasicondensate is possibly formed for small values of the lattice depth, but for larger ones the critical phase-space density for quasicondensation rapidly exceeds our experimental reach, due to an increase of the exciton effective mass. On the other hand, in the regime of a deep lattice potential where excitons are strongly localized at the lattice sites, we show that an array of phase-independent quasicondensates, different from a Mott insulator, is realized.
AB - We study two-dimensional excitons confined in a lattice potential, for high fillings of the lattice sites. We show that a quasicondensate is possibly formed for small values of the lattice depth, but for larger ones the critical phase-space density for quasicondensation rapidly exceeds our experimental reach, due to an increase of the exciton effective mass. On the other hand, in the regime of a deep lattice potential where excitons are strongly localized at the lattice sites, we show that an array of phase-independent quasicondensates, different from a Mott insulator, is realized.
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U2 - 10.1103/PhysRevLett.126.067404
DO - 10.1103/PhysRevLett.126.067404
M3 - Article
C2 - 33635707
AN - SCOPUS:85100886932
SN - 0031-9007
VL - 126
JO - Physical review letters
JF - Physical review letters
IS - 6
M1 - 067404
ER -