Experiments with Bose-Einstein Condensates aboard the Space Station: Quantum control and quantum...
Ғылым және технология
Experiments with Bose-Einstein Condensates aboard the Space Station: Quantum control and quantum sensing in the Coldest Spot in Space
CQT Colloquium
Speaker: Nicholas P. Bigelow, The University of Rochester
Abstract: I will describe the work of the Consortium for Ultracold Atoms over the past four years using NASA’s and the Jet Propulsion Lab’s Cold Atom Laboratory (CAL), a shared user facility for investigating quantum matter in microgravity. In the first phases of our work we developed shortcut to adiabaticity protocols for transporting a rubidium Bose-Einstein Condensate (BEC) with positioning accuracy of ~70 nm and release velocity at or below the 100µm/s level. Deep cooling was similarly achieved using delta-kick-cooling to kinetic temperatures at or below 50 pK, creating the coldest spot in Space. I will also describe our preliminary atom interferometry experiments using both Rb and K, and our demonstration of high-performance sensing of magnetic fields and field gradients as well as preliminary tests of the Einstein Equivalence Principle.
Пікірлер: 7
00:11 Cold atom experiments in space 02:20 Accessing unique gravitational potentials in space for long observation times and Pathfinder experiments on Quantum Technologies 06:52 NASA's unique approach to building the Cold Atom Laboratory on the Space Station 09:02 Experimental setup for Bose-Einstein Condensates aboard the Space Station 13:26 Formation of Consortium for Ulta cold atoms in space 15:46 Manipulating Bose-Einstein condensates in space presents challenges and opportunities. 19:43 Quantum control and quantum modeling of Bose-Einstein Condensates aboard the Space Station. 21:43 Quantum control and analysis of Bose-Einstein Condensates in space 25:43 Delta kick cooling is used to dampen excitation motion in atoms. 27:54 Transporting clouds in space for quantum state preparation 32:05 Adapting quantum control for space station experiments 34:02 Demonstrating Quantum sensors' usefulness aboard the ISS 37:56 Bose condensate expansion and interferometry demonstrate quantum control and quantum characterization. 40:10 Utilization of residual gradients for magnetometry and gradiometry 44:21 Achieving magnetically insensitive zero Ziemann sub level population 46:30 Quantum control for rubidium and potassium on Space Station 50:28 Creating a space atom laser for studying atom dynamics in a shell structure. 52:34 Experiments with Bose-Einstein Condensates in space station and potential research 56:14 Consider continuing the project to save costs.
I was looking for similar experiment. Bose Einstein condensate was created by lene vestergaurd hau. That will be more useful for me. Please make video regarding that. Also if possible mention the cost of experiment too. If feasible i want to create some experiments myself with Bose Einstein condensate. Need to confirm some thought experiment.
@54:57 Our government at work. Appalling.
What is a coal daddom?
Atom + atom = 4 atoms or vacUUm. InteFerOMetry and interFerENce. O IIIIIIII O