Zobrazeno 1 - 10
of 1 808
pro vyhledávání: '"Fleischhauer, P."'
We discuss impurities in a trapped one-dimensional Bose gas with arbitrary boson-boson and boson-impurity interactions. To fully account for quantum effects, in particular in the regime of strong boson-boson interactions, we employ numerical simulati
Externí odkaz:
http://arxiv.org/abs/2408.11549
Autor:
Tebbenjohanns, Felix, Mink, Christopher D., Bach, Constanze, Rauschenbeutel, Arno, Fleischhauer, Michael
In recent experiments, a novel type of cascaded quantum system has been realized using nanofiber-coupled cold atomic ensembles. This setup has enabled the study of superradiant decay of highly excited collective spin states of up to a thousand atoms,
Externí odkaz:
http://arxiv.org/abs/2407.02154
The facilitation of Rydberg excitations in a gas of atoms provides an ideal model system to study epidemic evolution on (dynamic) networks and self organization of complex systems to the critical point of a non-equilibrium phase transition. Using Mon
Externí odkaz:
http://arxiv.org/abs/2404.16523
Publikováno v:
Phys. Rev. A 109, 032622 (2024)
We exploit controlled breaking of time-reversal symmetry to realize coherent routing of quantum information in spin networks. The key component of our scheme is a spin triangle whose chirality is determined by the quantum state of a control qubit whi
Externí odkaz:
http://arxiv.org/abs/2310.10390
Autor:
Valencia-Tortora, Riccardo J., Pancotti, Nicola, Fleischhauer, Michael, Bernien, Hannes, Marino, Jamir
Publikováno v:
Phys. Rev. Lett. 132, 223201 (2024)
We propose a mechanism for engineering chiral interactions in Rydberg atoms via a directional antiblockade condition, where an atom can change its state only if an atom to its right (or left) is excited. The scalability of our scheme enables us to ex
Externí odkaz:
http://arxiv.org/abs/2309.12392
Autor:
Brady, Daniel, Fleischhauer, Michael
The excitation spread caused by Rydberg facilitation in a gas of laser driven atoms is an interesting model system for studying epidemic dynamics. We derive a mean-field approach to describe this facilitation process in the limits of high and low tem
Externí odkaz:
http://arxiv.org/abs/2308.14408
Publikováno v:
SciPost Phys. 15, 233 (2023)
Interfaces of light and matter serve as a platform for exciting many-body physics and photonic quantum technologies. Due to the recent experimental realization of atomic arrays at sub-wavelength spacings, collective interaction effects such as superr
Externí odkaz:
http://arxiv.org/abs/2305.19829
Autor:
Will, Martin, Fleischhauer, Michael
Publikováno v:
New J. Phys. 25, 083043 (2023)
We discuss the dynamics of the formation of a Bose polaron when an impurity is injected into a weakly interacting one-dimensional Bose condensate. While for small impurity-boson couplings this process can be described within the Froehlich model as ge
Externí odkaz:
http://arxiv.org/abs/2304.14490
Publikováno v:
Phys. Rev. Lett. 131, 083801 (2023)
Robust states emerging at the boundary of a system constitute a hallmark for topological band structures. Other than in closed systems, topologically protected states can occur even in systems with a trivial band structure, if exposed to suitably mod
Externí odkaz:
http://arxiv.org/abs/2303.07346
Autor:
Brady, Daniel, Bender, Jana, Mischke, Patrick, Niederprüm, Thomas, Ott, Herwig, Fleischhauer, Michael
The spread of excitations by Rydberg facilitation bears many similarities to epidemics. Such systems can be modeled with Monte-Carlo simulations of classical rate equations to great accuracy as a result of high dephasing. In this paper, we analyze th
Externí odkaz:
http://arxiv.org/abs/2302.14145