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.
Novel Phases of Matter Near Absolute Zero Temperature by Sanjukta Roy
International Centre for Theoretical Sciences via YouTube
Overview
Syllabus
WHEN: 4:00 pm to pm Sunday, 31 July 2022
Introduction to the Speaker
Outline of the talk
Bose-Einstein Condensation 1924
Letter by Bose to Einstein
Einstein's reply to Bose
Celebrating Satyendra Nath Bose
Quantum gases
The prediction of 'condensation'
Bose-Einstein condensation
Temperature scale
Five states of matter
Plasma: fourth state of matter
How to realize a Bose-Einstein Condensate in a Laboratory?
Steps towards realization of BEC in Experiment
Laser cooling and trapping
Radiation pressure force
DOPPLER EFFECT
Laser cooling
Manipulation of atomic motion using radiation pressure
Cooling by radiation pressure imbalance
Optical molasses Strong damping of atomic motion
Magneto-Optical trapping
Picture of cold atoms in a magneto-optical -
The Nobel Prize in Physics 1997
Detection: Absorption Imaging technique
Temperature after laser cooling approx. 40 MuK
Optical dipole trap Optical Tweezer
Loading of optical dipole trap from magneto-optical trap MOT
Quadrupole Magnetic trap
Magnetic trapping
Evaporative cooling to BEC
Signatures of harmonically trapped BEC
Evaporative cooling to Bose-Einstein condense
BEC @ JILA, June '95 Rubidium
BEC: like atoms marching in locksteps
BEC in a crossed Optical dipole trap TIF -
Experimental set-up 39K BEC Florence, Italy
39K BEC Florence, Italy
Coherent and incoherent matter waves
Coherent matter wave: BEC
Superfluid
Superfluid transition in liquid Helium
Frictionless flow in superfluid Helium
Superfluidity
Normal fluid vs Superfluid
Vortices in BEC
Supersolidity in Bose-Einstein condensates Coexistence of solid, superfluid and gas
Order in a solid
Supersolidity
Quantum Technology with cold atoms
BEC in Space
Gravimeter with cold atoms in Spa
Conventional clocks
Atomic clocks
Fountain Atomic clocks
Accurate cold Atomic clocks
Practical applications for Atomic clocks
Nobel Prize in Physics 1989
Optical lattices: artificial crystals of light
Quantum simulation with ultra-cold atoms in optical lattice
Optical lattices: Control of Geometry
Atomic legos
Quantum Mixtures QuMix experiment @ R
Why Bose-Fermi mixture?
Vacuum assembly
Quantum Mixture Experiment @ RRI
Rydberg atoms: Giants of the atomic world
Rydberg Experiment@RRI
Quantum Technologies with Rydberg atoms
Quantum Mixtures QuMix and Rydberg Experiment Group @
Q&A
Wrap Up
Taught by
International Centre for Theoretical Sciences
