Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Olmos, Beatriz"'
Autor:
Nairn, Marc, Giannelli, Luigi, Morigi, Giovanna, Slama, Sebastian, Olmos, Beatriz, Jäger, Simon B.
We study the onset of collective spin-self-organization in a thermal ensemble of driven two-level atoms confined in an optical cavity. The atoms spontaneously form a spin-pattern above a critical driving strength that sets a threshold and is determin
Externí odkaz:
http://arxiv.org/abs/2407.19706
Quantum spin models with a large number of interaction partners per spin are frequently used to describe modern many-body quantum optical systems like arrays of Rydberg atoms, atom-cavity systems or trapped ion crystals. For theoretical analysis the
Externí odkaz:
http://arxiv.org/abs/2407.18156
Autor:
Hernandez, Enrique, Suarez, Elmer, Lesanovsky, Igor, Olmos, Beatriz, Courteille, Philippe W., Slama, Sebastian
Dissipative light-matter systems can display emergent collective behavior. Here, we report a $\mathbb{Z}_2$-symmetry-breaking phase transition in a system of multi-level $^{87}$Rb atoms strongly coupled to a weakly driven two-mode optical cavity. In
Externí odkaz:
http://arxiv.org/abs/2405.09885
We establish the concept of topological pumping in one-dimensional systems with long-range couplings and apply it to the transport of a photon in quantum optical systems. In our theoretical investigation, we introduce an extended version of the Rice-
Externí odkaz:
http://arxiv.org/abs/2404.05570
Publikováno v:
Phys. Rev. A 108, L051702 (2023)
Atomic emitter ensembles couple collectively to the radiation field. Although an excitation on a single emitter may be short-lived, a collection of them can contain a photon several orders of magnitude longer than the single emitter lifetime. We prov
Externí odkaz:
http://arxiv.org/abs/2303.13564
Publikováno v:
Quantum 7, 1091 (2023)
When an emitter ensemble interacts with the electromagnetic field, dipole-dipole interactions are induced between the emitters. The magnitude and shape of these interactions are fully determined by the specific form of the electromagnetic field modes
Externí odkaz:
http://arxiv.org/abs/2211.13595
Autor:
Suarez, Elmer, Carollo, Federico, Lesanovsky, Igor, Olmos, Beatriz, Courteille, Philippe W., Slama, Sebastian
We investigate experimentally and theoretically the collective coupling between atoms with multilevel ground state manifolds and an optical cavity mode. In our setup the cavity field optically pumps populations among the ground states. The ensuing dy
Externí odkaz:
http://arxiv.org/abs/2210.06085
Publikováno v:
PhysRevLett.129.243202 (2022)
When atoms are excited to high-lying Rydberg states they interact strongly with dipolar forces. The resulting state-dependent level shifts allow to study many-body systems displaying intriguing nonequilibrium phenomena, such as constrained spin syste
Externí odkaz:
http://arxiv.org/abs/2206.02843
Autor:
McDonnell, Ciaran, Olmos, Beatriz
Publikováno v:
Quantum 6, 805 (2022)
We analyze the topological and dynamical properties of a system formed by two chains of identical emitters coupled to a waveguide, whose guided modes induce all-to-all excitation hopping. We find that, in the single excitation limit, the bulk topolog
Externí odkaz:
http://arxiv.org/abs/2205.13853
Publikováno v:
Phys. Rev. Lett. 127, 133601 (2021)
We investigate the creation and control of emergent collective behavior and quantum correlations using feedback in an emitter-waveguide system using a minimal model. Employing homodyne detection of photons emitted from a laser-driven emitter ensemble
Externí odkaz:
http://arxiv.org/abs/2102.02719