RESEARCH TOPIC
Phase diagrams of an ultracold atomic gas in the potential formed inside a pumped optical resonator, exhibiting overlapping Mott-insulator states.
Ultracold atoms and quantum optics
Group Association:
Description of Activities:
We investigate various aspects of ultracold atoms, like theory of weakly interacting Bose-Einstein condensates, methodology of Bose and Fermi systems, etc... We focus here on problems related to quantum optics, i.e. that employ quantum optics schemes, or that use quantum optics methods.
In particular, we study:
- novel methods for ultracold Bose gases in traps and lattices, and their dynamics (solitons, lattice shaking/modulation).
- various methods of detection in ultracold gases, such as particle counting, homodyne detection etc...
- ultracold atoms with cavity quantum electrodynamics, i.e. coupled to high finesse optical resonators.
People in this Project:
Publications associated to this project
- Quantum-orbit analysis of high-order-harmonic generation by resonant plasmon field enhancement Phys. Rev. A 86, 023408 (2012)
- Particle-counting statistics of time- and space-dependent fields Phys. Rev. A 85, 033818 (2012)
- Quantum memory assisted probing of dynamical spin correlations Phys. Rev. Lett. 108, 065302 (2012)
- Multimode mean-field model for the quantum phase transition of a Bose-Einstein condensate in an optical resonator Eur. Phys. J. D 65, 33-42 (2011)
- Atom counting in expanding ultracold clouds Phys. Rev. A 84, 043635 (2011)
- Nonequilibrium dynamics of the Bose-Hubbard model: A projection-operator approach Phys. Rev. Lett. 106, 095702 (2011)
- Counting of fermions and spins in strongly correlated systems in and out of thermal equilibrium Phys. Rev. A 83, 013601 (2011)
- Generation of optical and matter-wave solitons in binary systems with a periodically modulated coupling Phys. Rev. A 82, 043622 (2010)
- Dark solitons near the Mott-insulator-superfluid phase transition Phys. Rev. A 82, 033618 (2010)
- Quantum noise of a Bose-Einstein condensate in an optical cavity, correlations, and entanglement Phys. Rev. A 81, 043639 (2010)
- Dicke-Model phase transition in the quantum motion of a Bose-Einstein Condensate in an optical cavity Phys. Rev. Lett. 104, 130401 (2010)
- Macroscopic self-trapping in Bose-Einstein condensates: Analysis of a dynamical quantum phase transition Phys. Rev. A 81, 023615 (2010)
- Process-chain approach to the Bose-Hubbard model: Ground-state properties and phase diagram Phys. Rev. B 79, 224515 (2009)
- Dilute gas of ultracold two-level atoms inside a cavity: generalized Dicke model New J. Phys. 11, 063027 (2009)
- Process-chain approach to high-order perturbation calculus for quantum lattice models Phys. Rev. B 79, 195131 (2009)
- Bose-Hubbard phase diagram with arbitrary integer filling Phys. Rev. B 79, 100503(R) (2009)
- Fermion and spin counting in strongly correlated systems Phys. Rev. A 78, 063613 (2008)
- Cold Fermi atomic gases in a pumped optical resonator Phys. Rev. A 78, 023815 (2008)
- Rabi oscillations in a quantum dot-cavity system coupled to a nonzero temperature phonon bath Phys. Scripta 77, 065704 (2008)
- Quantum interference structures in trapped-ion dynamics beyond the Lamb-Dicke and rotating wave approximations Phys. Rev. A 77, 053808 (2008)
- Quantum stability of Mott-insulator states of ultracold atoms in optical resonators New J. Phys. 10, 045002 (2008)
- Wave packet methods in cavity QED J. Phys.: Conf. Ser. 99, 012011 (2008)
- Adiabatic evolution of in-site superposition states in a completely-connected optical lattice J. Phys.: Conf. Ser. 99, 012017 (2008)
- Mott-insulator states of ultracold atoms in optical resonators Phys. Rev. Lett. 100, 050401 (2008)
- Self-rotating wave approximation via symmetric ordering of ladder operators J. Mod. Opt. 54, 1497-1510 (2007)
- Dynamics of the Jaynes-Cummings and Rabi models: old wine in new bottles Phys. Scripta 76, 146-160 (2007)
- The social life of atoms Nature 445, 372-375 (2007)
- Trapped ion chain as a neural network: error resistant quantum computation Phys. Rev. Lett. 98, 023003 (2007)
- Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond Adv. Phys. 56, 243-379 (2007)
- Quantum fluctuations and collective oscillations of a Bose-Einstein condensate in a 2D optical lattice Phys. Rev. Lett. 97, 190408 (2006)
- Three level atom optics in dipole traps and waveguides Opt. Commun. 264, 264-270 (2006)
- Splitting and merging an elongated Bose-Einstein condensate at finite temperature Phys. Rev. A 73, 033601 (2006)
- Fermi-Dirac statistics and the number theory Europhys. Lett. 72, 506-512 (2005)
- Laser cooling down to molecular condensate Phys. Rev. A 72, 033606 (2005)
- One- and two-dimensional quantum walks in arrays of optical traps Phys. Rev. A 72, 012327 (2005)
- Soliton eigenvalue control in optical lattices Phys. Rev. Lett. 93, 143902 (2004)
