Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Ackemann, Thorsten"'
Publikováno v:
Atoms. 2024; 12(3):15
We show that a Bose--Einstein Condensate illuminated by a far off-resonant optical pump field and its retroreflection from a feedback mirror can produce stable, localised structures known as optomechanical droplets. We show that these droplets could
Externí odkaz:
http://arxiv.org/abs/2403.14330
Autor:
Krešić, Ivor, Ackemann, Thorsten
Quantum squeezed states offer metrological enhancement as compared to their classical counterparts. Here, we devise and numerically explore a novel method for performing SU(1,1) interferometry beyond the standard quantum limit, using quasi-cyclic non
Externí odkaz:
http://arxiv.org/abs/2309.12980
Publikováno v:
Physical Review Research 5, L032004 (2023)
A BEC interacting with an optical field via a feedback mirror can be a realisation of the quantum Hamiltonian Mean Field (HMF) model, a paradigmatic model of long-range interactions in quantum systems. We demonstrate that the self-structuring instabi
Externí odkaz:
http://arxiv.org/abs/2307.05398
We describe a mechanism for guiding the dynamical evolution of ultracold atomic motional degrees of freedom toward multiparticle entangled Dicke-squeezed states, via nonlinear self-organization under external driving. Two examples of many-body models
Externí odkaz:
http://arxiv.org/abs/2208.10111
Clouds of cold neutral atoms driven by a coherent light beam in a ring cavity exhibit self-structured states transversely with respect to the beam axis due to optomechanical forces and the back action of the atomic structures on the beam. Below the i
Externí odkaz:
http://arxiv.org/abs/2111.00227
Autor:
Ackemann, Thorsten, Labeyrie, Guillaume, Baio, Giuseppe, Krešić, Ivor, Walker, Josh G. M., Boquete, Adrian Costa, Griffin, Paul, Firth, William J., Kaiser, Robin, Oppo, Gian-Luca, Robb, Gordon R. M.
This article discusses self-organization in cold atoms via light-mediated interactions induced by feedback from a single retro-reflecting mirror. Diffractive dephasing between the pump beam and the spontaneous sidebands selects the lattice period. Sp
Externí odkaz:
http://arxiv.org/abs/2105.08340
Publikováno v:
Phys. Rev. Lett. 126, 203201 (2021)
We study the transverse self-structuring of a cloud of cold atoms with effective atomic interactions mediated by a coherent driving beam retro-reflected by means of a single mirror. The resulting self-structuring due to optomechanical forces is much
Externí odkaz:
http://arxiv.org/abs/2102.01819
Autor:
Costa-Boquete, Adrián, Baio, Giuseppe, Robb, Gordon R. M., Oppo, Gian-Luca, Griffin, Paul, Ackemann, Thorsten
The design of an experiment on the spontaneous crystallization of a laser-cooled, but thermal atomic cloud into a hexagonally structured phase is discussed. Atomic interaction is mediated by the dipole potential of an optical lattice formed spontaneo
Externí odkaz:
http://arxiv.org/abs/2011.07053
Autor:
Labeyrie, Guillaume, Kresic, Ivor, Robb, Gordon R. M., Oppo, Gian-Luca, Kaiser, Robin, Ackemann, Thorsten
When applying a red-detuned retro-reflected laser beam to a large cloud of cold atoms, we observe the spontaneous formation of 2D structures in the transverse plane corresponding to high contrast spatial modulations of both light field and atomic spi
Externí odkaz:
http://arxiv.org/abs/1806.09966
Autor:
Labeyrie, Guillaume, Tesio, Enrico, Gomes, Pedro M., Oppo, Gian-Luca, Firth, William J., Robb, Gordon R. M., Arnold, Aidan S., Kaiser, Robin, Ackemann, Thorsten
The rapidly developing field of optomechanics aims at the combined control of optical and mechanical (solid-state or atomic) modes. In particular, laser cooled atoms have been used to exploit optomechanical coupling for self-organization in a variety
Externí odkaz:
http://arxiv.org/abs/1308.1226