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WHEN: 4:00 pm to pm Sunday, 31 July 2022
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Introduction to the Speaker
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Outline of the talk
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Bose-Einstein Condensation 1924
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Letter by Bose to Einstein
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Einstein's reply to Bose
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Celebrating Satyendra Nath Bose
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Quantum gases
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The prediction of 'condensation'
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Bose-Einstein condensation
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Temperature scale
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Five states of matter
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Plasma: fourth state of matter
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How to realize a Bose-Einstein Condensate in a Laboratory?
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Steps towards realization of BEC in Experiment
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Laser cooling and trapping
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Radiation pressure force
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DOPPLER EFFECT
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Laser cooling
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Manipulation of atomic motion using radiation pressure
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Cooling by radiation pressure imbalance
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Optical molasses Strong damping of atomic motion
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Magneto-Optical trapping
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Picture of cold atoms in a magneto-optical -
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The Nobel Prize in Physics 1997
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Detection: Absorption Imaging technique
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Temperature after laser cooling approx. 40 MuK
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Optical dipole trap Optical Tweezer
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Loading of optical dipole trap from magneto-optical trap MOT
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Quadrupole Magnetic trap
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Magnetic trapping
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Evaporative cooling to BEC
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Signatures of harmonically trapped BEC
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Evaporative cooling to Bose-Einstein condense
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BEC @ JILA, June '95 Rubidium
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BEC: like atoms marching in locksteps
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BEC in a crossed Optical dipole trap TIF -
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Experimental set-up 39K BEC Florence, Italy
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39K BEC Florence, Italy
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Coherent and incoherent matter waves
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Coherent matter wave: BEC
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Superfluid
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Superfluid transition in liquid Helium
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Frictionless flow in superfluid Helium
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Superfluidity
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Normal fluid vs Superfluid
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Vortices in BEC
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Supersolidity in Bose-Einstein condensates Coexistence of solid, superfluid and gas
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Order in a solid
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Supersolidity
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Quantum Technology with cold atoms
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BEC in Space
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Gravimeter with cold atoms in Spa
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Conventional clocks
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Atomic clocks
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Fountain Atomic clocks
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Accurate cold Atomic clocks
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Practical applications for Atomic clocks
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Nobel Prize in Physics 1989
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Optical lattices: artificial crystals of light
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Quantum simulation with ultra-cold atoms in optical lattice
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Optical lattices: Control of Geometry
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Atomic legos
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Quantum Mixtures QuMix experiment @ R
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Why Bose-Fermi mixture?
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Vacuum assembly
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Quantum Mixture Experiment @ RRI
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Rydberg atoms: Giants of the atomic world
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Rydberg Experiment@RRI
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Quantum Technologies with Rydberg atoms
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Quantum Mixtures QuMix and Rydberg Experiment Group @
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Q&A
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Wrap Up
Description:
Explore the fascinating world of ultra-cold matter in this comprehensive lecture on novel phases near absolute zero temperature. Delve into the intricacies of Bose-Einstein Condensates (BEC), the coldest matter in the universe, and learn about their quantum properties and potential applications. Discover the techniques used to cool atoms to near-absolute zero temperatures, including laser cooling, trapping, and evaporative cooling. Examine the unique characteristics of superfluids and supersolids, and understand their significance in quantum physics. Investigate the practical applications of ultra-cold atoms in quantum technology, such as gravimeters, atomic clocks, and quantum computation. Gain insights into cutting-edge research on quantum mixtures and Rydberg atoms, and their potential for advancing quantum technologies. This talk by Dr. Sanjukta Roy, a renowned expert in the field, offers a deep dive into the exciting world of quantum physics and its implications for future technological advancements. Read more

Novel Phases of Matter Near Absolute Zero Temperature by Sanjukta Roy

International Centre for Theoretical Sciences
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