Performance of dynamical decoupling in bosonic environments and under pulse-timing fluctuations

Autor: Wallace S. Teixeira, Mauro Paternostro, Fernando L. Semião, Kishore T. Kapale

Publikováno v: Teixeira, W S, Kapale, K T, Paternostro, M & Semião, F L 2016, ' Performance of dynamical decoupling in bosonic environments and under pulse-timing fluctuations ', Physical Review A, vol. 94, no. 6, 062322 . https://doi.org/10.1103/PhysRevA.94.062322

We study the suppression of qubit dephasing through Uhrig dynamical decoupling (UDD) in nontrivial environments modeled within the spin-boson formalism. In particular, we address the case of (i) a qubit coupled to a bosonic bath with power-law spectr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba0e1b73f663def93d240f40565b7cfe
https://pure.qub.ac.uk/en/publications/performance-of-dynamical-decoupling-in-bosonic-environments-and-under-pulsetiming-fluctuations(5986f34c-4840-4050-aa9c-05bde5d360fe).html

Polarization preserving quantum nondemolition photodetector

Autor: Kishore T. Kapale

Publikováno v: Journal of Modern Optics. 54:327-335

A polarization preserving quantum nondemolition photodetector is proposed based on nonlinearities obtainable through quantum coherence effects. An atomic level scheme is devised such that in the presence of strong linearly polarized drive field a coh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f8cbdbed38e29cd0282987a6df6aad8
https://doi.org/10.1080/09500340600753822

Sharpening accepted thermodynamic wisdom via quantum control: or cooling to an internal temperature of zero by external coherent control fields without spontaneous emission

Autor: Georg Süßmann, Herbert Walther, Marlan O. Scully, Kishore T. Kapale, Yakir Aharonov, David J. Tannor

Publikováno v: Journal of Modern Optics. 49:2297-2307

Cooling of internal atomic and molecular states via optical pumping and laser cooling of the atomic velocity distribution, rely on spontaneous emission. The outstanding success of such examples, taken together with general arguments, has led to the w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::39601fe21ebd1da6256690010919c9d6
https://doi.org/10.1080/0950034021000011392

Equivalence of the master equation approach to the canonical ensemble approach for an ideal Bose gas

Autor: M. Suhail Zubairy, Kishore T. Kapale

Publikováno v: Optics Communications. 191:299-304

A picture of the condensate statistics of a confined Bose gas, which is more relevant to recent experimental realizations, can be obtained by the canonical ensemble approach. Nevertheless, handling the particle number conservation condition entering

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5c96f6278586bc227b8203d253b5d05b
https://doi.org/10.1016/s0030-4018(01)01140-3

Subwavelength Atom Localization

Autor: Kishore T. Kapale

Accurate measurement of the position of an atom has been a problem of interest ever since the thought experiment posed by Werner Heisenberg through the so-called Heisenberg’s microscope. Modern quantum optical techniques have made it possible to re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::09b4c291ac6aa9cb98acba66b08cb868
https://doi.org/10.1016/b978-0-444-62644-8.00004-2