Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Chaudhuri, Saptarishi"'
We report the observation of two additional sub-natural line width quantum interference in the $D_2$ manifold of $^{39}K$ vapor, in addition to the usual single Electromagnetically induced transparency peak. The other two features appear exclusively
Externí odkaz:
http://arxiv.org/abs/2403.18319
The position response of a particle subjected to a perturbation is of general interest in physics. We study the modification of the position response function of an ensemble of cold atoms in a magneto-optical trap in the presence of tunable light-ass
Externí odkaz:
http://arxiv.org/abs/2403.17707
Autor:
Sutradhar, Sagar, Misra, Anirban, Pal, Gourab, Majumder, Sayari, Roy, Sanjukta, Chaudhuri, Saptarishi
Publikováno v:
AIP Advances 13, 065317 (2023)
We present the design, implementation and detailed experimental characterization of two-dimensional Magneto-optical traps (MOT) of bosonic $^{23}$Na and $^{39}$K atoms for loading the cold atomic mixture in a dual-species 3DMOT with a large number of
Externí odkaz:
http://arxiv.org/abs/2210.14084
Publikováno v:
Optics Continuum Vol 1 (5), 1176-1192 (2022)
We report our measurements of the absolute transition frequencies of 5P_3/2,F = 3 to nS and nD Rydberg states of 87Rb with high principal quantum numbers in a wide range of values (n = 45-124). The measurements were performed using Rydberg Electromag
Externí odkaz:
http://arxiv.org/abs/2203.04852
We report non-invasive detection of spin coherence in a collection of Raman-driven cold atoms using dispersive Faraday rotation fluctuation measurements, which opens up new possibilities of probing spin correlations in quantum gases and other similar
Externí odkaz:
http://arxiv.org/abs/2104.10473
Publikováno v:
IEEE Transactions on Instrumentation and Measurement, vol. 70, 2021, pp. 1-8
We present the development and characterization of a generic, reconfigurable, low-cost ($<$ 350 USD) software-defined digital receiver system (DRS) for temporal correlation measurements in atomic spin ensembles. We demonstrate the use of the DRS as a
Externí odkaz:
http://arxiv.org/abs/2101.09927
Autor:
Bhar, Subhajit, Swar, Maheswar, Satpathi, Urbashi, Sinha, Supurna, Sorkin, Rafael D., Chaudhuri, Saptarishi, Roy, Sanjukta
Publikováno v:
Optics Continuum Vol 1 (2), 171-188 (2022)
We report our experimental measurements and theoretical analysis of the position response function of a cloud of cold atoms residing in the viscous medium of an optical molasses and confined by a magneto-optical trap (MOT). We measure the position re
Externí odkaz:
http://arxiv.org/abs/2101.09118
Akademický článek
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Autor:
Swar, Maheswar, Roy, Dibyendu, D, Dhanalakshmi, Chaudhuri, Saptarishi, Roy, Sanjukta, Ramachandran, Hema
Publikováno v:
Optics Express Vol. 26, Issue 24, pp. 32168-32183 (2018)
We explore the applications of spin noise spectroscopy (SNS) for detection of the spin properties of atomic ensembles in and out of equilibrium. In SNS, a linearly polarized far-detuned probe beam on passing through an ensemble of atomic spins acquir
Externí odkaz:
http://arxiv.org/abs/1809.02321
Autor:
Tanzi, Luca, Lucioni, Eleonora, Chaudhuri, Saptarishi, Gori, Lorenzo, Kumar, Avinash, D'Errico, Chiara, Inguscio, Massimo, Modugno, Giovanni
Publikováno v:
Phys. Rev. Lett. 111, 115301 (2013)
We investigate the momentum-dependent transport of 1D quasi-condensates in quasiperiodic optical lattices. We observe a sharp crossover from a weakly dissipative regime to a strongly unstable one at a disorder-dependent critical momentum. In the limi
Externí odkaz:
http://arxiv.org/abs/1307.4060