A Talk on
Bose Einstein Condensates and Ultracold Atoms
23rd January 2021
04:30 PM IST
The Speaker,
(LAMP) Group, Raman Research Institute,Bangalore
Dr. Sanjukta Roy is a Researcher in Atomic Physics with a research interest in ultra-cold atoms and quantum degenerate gases with a particular interest in few-body physics with ultra-cold atoms, Anderson localization of matter waves in disordered potentials, and Quantum Entanglement with ultra-cold Rydberg atoms.
She completed her Ph.D. from Tata Institute of Fundamental Research, Mumbai where she built up an experiment to realize all-optical Bose-Einstein condensates (BEC) in optical traps and 1D optical lattices.
The above said experiment successfully realized the first Bose-Einstein condensate in India in an all-optical dipole trap and in a 1D optical lattice.
Major Contributions
-
European Laboratory for Non-linear Spectroscopy and Dipartimento di Fisica e Astronomia, Florence, Italy, ERC Post-Doctoral Researcher (2011-2013).
Advisor: Prof. M. Inguscio, and Prof. G. Modugno.
Area of Study: Efimov Physics with ultra-cold atoms, Experiment on Entanglement and Disorder with Bose-Einstein condensates. -
Laboratoire Kastler Brossel, Ecole Normale Superieure, Paris, IFRAF Post-Doctoral Researcher (2008-2010),
Advisor: Prof. Claude Cohen-Tannoudji (Nobel Laureate, Physics 1997) and Prof. Michele Leduc,
Area of Study: Real-time dynamics of Superfluid to Mott-Insulator transition in metastable Helium atoms. -
Laboratoire Charles Fabry Instut d'Optique, Palaiseau, France, CNRS Post-Doctoral Researcher (Sept 2010 -Dec 2010), Advisor: Prof. Phillipe Grangier,
Area of Study: Single-photon nonlinearities (ERC project DELPHI: Deterministic Logical Photon-Photon Interactions). -
Ph.D., Physics, Tata Institute of Fundamental Research, Mumbai, India (2008),
Thesis Topic: Ultra-cold atoms and Bose-Einstein Condensate in a 1D Quasi-Electrostatic Optical Lattice
Advisor: Prof. C. S. Unnikrishnan.
Bose Einstein Condensate
Bose-Einstein condensate (BEC) is a state of matter (also called the fifth state of matter) which is typically formed when a gas of bosons at low densities is cooled to temperatures very close to absolute zero (-273.15 °C, -459.67 °F). Under such conditions, a large fraction of bosons occupy the lowest quantum state, at which point microscopic quantum mechanical phenomena, particularly wavefunction interference, become apparent macroscopically. A BEC is formed by cooling a gas of extremely low density (about one-hundred-thousandth (1/100,000) the density of normal air) to ultra-low temperatures.
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