Zobrazeno 1 - 10
of 161
pro vyhledávání: '"Atom-Optics Kicked Rotor"'
Autor:
Bolik, Nikolai, Wimberger, Sandro
Publikováno v:
Phys. Rev. A 109, 063307 (2024)
Quantum walks have gained significant attention over the past decades, mainly because of their variety of implementations and applications. Atomic quantum walks are typically subject to spontaneous emissions arising from the control fields. We invest
Externí odkaz:
http://arxiv.org/abs/2402.13218
Autor:
Maurya, S. Sagar, Kannan, S. Bharathi, Patel, Kushal, Dutta, Pranab, Biswas, Korak, Mangaonkar, Jay, Santhanam, M. S., Rapol, Umakant D.
Atom-optics kicked rotor represents an experimentally realizable version of the paradigmatic quantum kicked rotor system. After a short initial diffusive phase the cloud settles down to a stationary state due to the onset of dynamical localization. I
Externí odkaz:
http://arxiv.org/abs/2202.02820
Autor:
Sarkar, Sumit, Paul, Sanku, Vishwakarma, Chetan, Kumar, Sunil, Verma, Gunjan, Sainath, M., Rapol, Umakant D., Santhanam, M. S.
Publikováno v:
Phys. Rev. Lett. 118, 174101 (2017)
Quantum systems lose coherence upon interaction with the environment and tend towards classical states. Quantum coherence is known to exponentially decay in time so that macroscopic quantum superpositions are generally unsustainable. In this work, sl
Externí odkaz:
http://arxiv.org/abs/1607.05605
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Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 39, L145-L151 (2006)
We show that the quantum fidelity is accessible to cold atom experiments for a large class of evolutions in periodical potentials, properly taking into account the experimental initial conditions of the atomic ensemble. We prove analytically that, at
Externí odkaz:
http://arxiv.org/abs/quant-ph/0603095
Publikováno v:
Phys. Rev. Lett. 94, 174103 (2005)
We present mean energy measurements for the atom optics kicked rotor as the kicking period tends to zero. A narrow resonance is observed marked by quadratic energy growth, in parallel with a complete freezing of the energy absorption away from the re
Externí odkaz:
http://arxiv.org/abs/quant-ph/0507255
We present measurements of the mean energy for an atom optics kicked rotor ensemble close to quantum resonance. Oscillations in the mean energy in this regime are are shown to be in agreement with a quasi--classical pendulum approximation. The period
Externí odkaz:
http://arxiv.org/abs/quant-ph/0504219
Publikováno v:
Phys. Rev. A 71, 053404 (2005)
We present experimental measurements of the mean energy in the vicinity of the first and second quantum resonances of the atom optics kicked rotor for a number of different experimental parameters. Our data is rescaled and compared with the one param
Externí odkaz:
http://arxiv.org/abs/physics/0502061
The effect of pulse train noise on the quantum resonance peaks of the Atom Optics Kicked Rotor is investigated experimentally. Quantum resonance peaks in the late time mean energy of the atoms are found to be surprisingly robust against all levels of
Externí odkaz:
http://arxiv.org/abs/quant-ph/0401161
We experimentally verify the analytical expressions that exist for the diffusion rate in the quantum delta kicked rotor system for small numbers of kicks. We show development of diffusion resonances from two to five kicks, and of multiple resonances
Externí odkaz:
http://arxiv.org/abs/quant-ph/0602081