Macroscopic quantum self-trapping and Josephson oscillations of exciton polaritons
Marco Abbarchi,Marco Abbarchi,Alberto Amo,V. G. Sala,V. G. Sala,Dmitry Solnyshkov,Hugo Flayac,Lydie Ferrier,Isabelle Sagnes,Elisabeth Galopin,Aristide Lemaître,Guillaume Malpuech,Jacqueline Bloch +12 more
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In this article, the authors demonstrated an optical realization of self-trapping and Josephson oscillations using polariton condensates in overlapping microcavities, and demonstrated that such effects can be observed in optical systems.Abstract:
The Josephson effects that arise when two quantum states are coupled through a barrier are difficult to observe in optical systems because photon–photon interactions are so weak. Researchers have now demonstrated an optical realization of two such phenomena—macroscopic self-trapping and Josephson oscillations—using polariton condensates in overlapping microcavities.read more
Citations
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Two coupled nonlinear cavities in a driven-dissipative environment
TL;DR: In this article, two coupled nonlinear cavities that are coherently driven in a dissipative environment were investigated and a set of analytical solutions for the steady-state correlation functions by using the complex $P$ representation were presented.
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Neuromorphic Binarized Polariton Networks.
Rafał Mirek,Andrzej Opala,Paolo Comaron,Magdalena Furman,M. Król,Krzysztof Tyszka,Bartłomiej Seredyński,Dario Ballarini,Daniele Sanvitto,Timothy Chi Hin Liew,Wojciech Pacuski,Jan Suffczyński,Jacek Szczytko,Michał Matuszewski,Barbara Piętka +14 more
TL;DR: In this article, an optical network of nodes performing binary operations is proposed, where the nonlinearity required for efficient computation is provided by semiconductor microcavities in the strong quantum light-matter coupling regime, which exhibit excitonpolariton interactions.
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Transport of neutral optical excitations using electric fields
TL;DR: In this paper, the Coulomb drag effect of mobile quantum impurities interacting with a fermionic bath form quasiparticles known as Fermi polarons, and the authors demonstrate that a force applied to the bath particles can generate a drag force of similar magnitude acting on the impurities.
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Maximizing entanglement in bosonic Josephson junctions using shortcuts to adiabaticity and optimal control
TL;DR: In this paper, the authors consider a bosonic Josephson junction, a model system composed of two coupled nonlinear quantum oscillators which can be implemented in various physical contexts, initially prepared in a product of weakly populated coherent states, and quantify the maximum achievable entanglement between the modes of the junction and then use shortcuts to adiabaticity.
References
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Direct observation of tunneling and nonlinear self-trapping in a single bosonic Josephson junction.
TL;DR: A novel nonlinear effect known as macroscopic quantum self-trapping, which leads to the inhibition of large amplitude tunneling oscillations in superconducting and superfluid Josephson junctions is confirmed.
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Quantum Coherent Atomic Tunneling between Two Trapped Bose-Einstein Condensates
TL;DR: In this article, the authors studied the coherent tunneling between two zero-temperature Bose-Einstein condensates (BEC) confined in a double-well magnetic trap.
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Strongly interacting polaritons in coupled arrays of cavities
TL;DR: In this article, a system of polaritons held in an array of resonant optical cavities, which could be realized using photonic crystals or toroidal microresonators, was shown to form a strongly interacting many-body system showing quantum phase transitions, where individual particles can be controlled and measured.
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Coherent oscillations between two weakly coupled Bose-Einstein condensates: Josephson effects, π oscillations, and macroscopic quantum self-trapping
TL;DR: In this paper, coherent atomic oscillations between two weakly coupled Bose-Einstein condensates are discussed, where the weak link is provided by a laser barrier in a (possibly asymmetric) double-well trap or by Raman coupling between two Condensates in different hyperfine levels.