Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Dubin, F."'
Autor:
Lagoin, C., Bhattacharya, U., Grass, T., Chhajlany, R., Salamon, T., Baldwin, K., Pfeiffer, L., Lewenstein, M., Holzmann, M., Dubin, F.
The Hubbard model constitutes one of the most celebrated theoretical frameworks of condensed-matter physics. It describes strongly correlated phases of interacting quantum particles confined in lattice potentials. For bosons, the Hubbard Hamiltonian
Externí odkaz:
http://arxiv.org/abs/2201.03311
Autor:
Dang, S., Zamorano, M., Suffit, S., West, K., Baldwin, K., Pfeiffer, L., Holzmann, M., Dubin, F.
Publikováno v:
Phys. Rev. Research 2, 032013 (2020)
Emergence of algebraic quasi-long-range order is a key feature of superfluid phase transitions at two dimensions. For this reduced dimensionality interactions prevent Bose-Einstein condensation with true long range order, at any finite temperature. H
Externí odkaz:
http://arxiv.org/abs/2001.01309
Publikováno v:
Phys. Rev. Lett. 114, 090401 (2015)
Exchange processes are responsible for the stability of elementary boson condensates with respect to their possible fragmentation. This remains true for composite bosons when single fermion exchanges are included but spin degrees of freedom are ignor
Externí odkaz:
http://arxiv.org/abs/1409.3747
We propose optical means to reveal the presence of a dark exciton condensate that does not yield any photoluminescence at all. We show that (i) the dark exciton density can be obtained from the blueshift of the excitonic absorption line induced by da
Externí odkaz:
http://arxiv.org/abs/1307.1256
We report experiments showing that spatially indirect excitons confined in a wide single quantum well can exhibit macroscopic spatial coherence. Extended coherence is spontaneously established in the regime where indirect excitons form a distinctive
Externí odkaz:
http://arxiv.org/abs/1210.3176
In condensed-matter physics, remarkable advances have been made with atomic systems by establishing a thorough control over cooling and trapping techniques. In semiconductors, this method may also provide a deterministic approach to reach the long st
Externí odkaz:
http://arxiv.org/abs/1202.3301
We study the photoluminescence dynamics of ultra-cold indirect excitons optically created in a double quantum well heterostructure. Above a threshold laser excitation, our experiments reveal the apparition of the so-called inner photoluminescence rin
Externí odkaz:
http://arxiv.org/abs/1202.1985
Publikováno v:
New J. Phys. 15 (2013) 025033
We use a single trapped 40Ca+ ion as a resonant, polarization-sensitive absorber to detect and characterize the entanglement of tunable narrowband photon pairs from a spontaneous parametric down-conversion source. Single-photon absorption is marked b
Externí odkaz:
http://arxiv.org/abs/1111.1085
Publikováno v:
New J. Phys. 12 (2010) 093008
We study a gas of dipolar Bosons confined in a two-dimensional optical lattice. Dipoles are considered to point freely in both up and down directions perpendicular to the lattice plane. This results in a nearest neighbor repulsive (attractive) intera
Externí odkaz:
http://arxiv.org/abs/1003.5591
In the fluorescence light of a single atom, the probability for emission of a photon with certain polarization depends on the polarization of the photon emitted immediately before it. Here correlations of such kind are investigated with a single trap
Externí odkaz:
http://arxiv.org/abs/0911.4846