Zobrazeno 1 - 10
of 257
pro vyhledávání: '"Miniatura C"'
Autor:
Amico, L., Boshier, M., Birkl, G., Minguzzi, A., Miniatura, C., Kwek, L. -C., Aghamalyan, D., Ahufinger, V., Anderson, D., Andrei, N., Arnold, A. S., Baker, M., Bell, T. A., Bland, T., Brantut, J. P., Cassettari, D., Chetcuti, W. J., Chevy, F., Citro, R., De Palo, S., Dumke, R., Edwards, M., Folman, R., Fortagh, J., Gardiner, S. A., Garraway, B. M., Gauthier, G., Günther, A., Haug, T., Hufnagel, C., Keil, M., von Klitzing, W., Ireland, P., Lebrat, M., Li, W., Longchambon, L., Mompart, J., Morsch, O., Naldesi, P., Neely, T. W., Olshanii, M., Orignac, E., Pandey, S., Pérez-Obiol, A., Perrin, H., Piroli, L., Polo, J., Pritchard, A. L., Proukakis, N. P., Rylands, C., Rubinsztein-Dunlop, H., Scazza, F., Stringari, S., Tosto, F., Trombettoni, A., Victorin, N., Wilkowski, D., Xhani, K., Yakimenko, A.
Publikováno v:
AVS Quantum Sci. 3, 039201 (2021)
Atomtronics deals with matter-wave circuits of ultra-cold atoms manipulated through magnetic or laser-generated guides with different shapes and intensities. In this way, new types of quantum networks can be constructed, in which coherent fluids are
Externí odkaz:
http://arxiv.org/abs/2008.04439
Publikováno v:
Phys. Rev. A 90, 063602 (2014)
We present a detailed numerical and theoretical analysis of the recently discovered phenomenon of coherent forward scattering. This effect manifests itself as a macroscopic interference peak in the forward direction of the momentum distribution of a
Externí odkaz:
http://arxiv.org/abs/1410.0774
Publikováno v:
Phys. Rev. Lett. 109, 190601 (2012)
Numerical simulations show that, at the onset of Anderson localization, the momentum distribution of a coherent wave packet launched inside a random potential exhibits, in the forward direction, a novel interference peak that complements the coherent
Externí odkaz:
http://arxiv.org/abs/1204.3451
Publikováno v:
Phys. Rev. A 82, 013614 (2010)
Quantum Monte Carlo (QMC) techniques are used to provide an approximation-free investigation of the phases of the one-dimensional attractive Hubbard Hamiltonian in the presence of population imbalance. The temperature at which the "Fulde-Ferrell-Lark
Externí odkaz:
http://arxiv.org/abs/1004.4499
Autor:
Lee, K. L., Bouadim, K., Batrouni, G. G., Hebert, F., Scalettar, R. T., Miniatura, C., Gremaud, B.
Publikováno v:
Phys. Rev. B 80, 245118 (2009)
We study the attractive fermionic Hubbard model on a honeycomb lattice using determinantal quantum Monte Carlo simulations. By increasing the interaction strength U (relative to the hopping parameter t) at half-filling and zero temperature, the syste
Externí odkaz:
http://arxiv.org/abs/0909.2987
This paper investigates quantum diffusion of matter waves in two-dimensional random potentials, focussing on expanding Bose-Einstein condensates in spatially correlated optical speckle potentials. Special care is taken to describe the effect of depha
Externí odkaz:
http://arxiv.org/abs/0807.3698
In a recent Letter (Phys. Rev. Lett. \textbf{98}, 083601 (2007), arXiv:cond-mat/0610804), O. Assaf and E. Akkermans claim that the angular correlations of the light intensity scattered by a cloud of cold atoms with internal degeneracy (Zeeman subleve
Externí odkaz:
http://arxiv.org/abs/0705.0366
Publikováno v:
New J. Phys. 9 (2007) 161
This article studies multiple scattering of matter waves by a disordered optical potential in two and in three dimensions. We calculate fundamental transport quantities such as the scattering mean free path $\ell_s$, the Boltzmann transport mean free
Externí odkaz:
http://arxiv.org/abs/cond-mat/0702183
Publikováno v:
Phys. Rev. Lett. 95, 250403 (2005)
We consider ultracold atoms in 2D-disordered optical potentials and calculate microscopic quantities characterizing matter wave quantum transport in the non-interacting regime. We derive the diffusion constant as function of all relevant microscopic
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506371
Publikováno v:
J. Phys. A: Math. Gen. 38 (2005) 7807
Quantum effects in weakly disordered systems are governed by the properties of the elementary interaction between propagating particles and impurities. Long range mesoscopic effects due to multiple scattering are derived by iterating the single scatt
Externí odkaz:
http://arxiv.org/abs/cond-mat/0504175