Ultracold atoms out of equilibrium

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August undefined, 2024

WebUnlike alkali atoms, which require complex techniques to impart angular momentum to the atomic cloud, dipolar quantum gases offer a unique opportunity. Following a new concept proposed in 2024, we are able to rotate the gas by revolving the magnetic field axis. Due to the phenomenon of magnetostriction, tilting the magnetic field towards the ... Web9 Nov 2015 · Non-equilibrium dynamics is one of the hottest directions. Ultracold atoms are particularly suited for the study of quantum dynamics due to their slow evolution time scales of miniseconds to seconds. Dynamics near a quantum phase transition and the thermalization of isolated quantum systems are two research topics with many …

Quantum simulations with ultracold atoms in optical lattices

WebUltracold gases are a relatively young field in atomic and molecular physics. They became world wide known after the achievement of Bose-Einstein condensation in 1995 (see Nobel Prize in Physics in 2001). In more recent years, these systems have attracted a great deal of attention in other areas in physics, such as condensed matter physics, nuclear physics, … Webfermionic atoms in ultracold atomic gases. 1. October 26, 2024 16:2 Physics on Ultracold Quantum Gases 9in x 6in b3373-ch01 page 2 ... out to be quite diﬃcult to realize a well-behaved BEC experimentally. To increase phase-space density often requires a high number density, which ... much longer than the time required for thermal equilibrium ... hot roots from toner

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WebWe study the out-of-equilibrium dynamics of two interacting atoms in a one-dimensional harmonic trap after a quench by a tightly pinned impurity atom. We make use of an approximate variational calculation called the Lagrange-mesh method to solve the Schrödinger equation as a function of interparticle interaction and impurity quench strength. Web26 May 2024 · In experiments with ultra-cold and ultra-dilute bosonic quantum gases, a novel state of matter was discovered: self-bound droplets form out of a gaseous Bose-Einstein condensate of dysprosium or potassium in different hyperfine states. These novel quantum liquids stabilize because of quantum fluctuations. Web20 Jan 2024 · As renowned physicist Richard Feynman argued, to fully understand nature, we need quantum means of simulation and computation. Ultracold atomic systems have, in the past 30 years, proven to be ... linear regression checks

Ultracold Atoms Out of Equilibrium Annual Review of …

Ultracold atoms out of equilibrium - geomgrav.fi.ut.ee

WebDavid Weiss Lab. Jan 2014 - May 20246 years 5 months. Penn State University. We do research with neutral atoms trapped in optical lattices. We primarily study 1D interactions and dynamics with ... WebOur system is able to load 4x1010 39K atoms in 100 ms, 1x109 6Li atoms in 1 s, and 5x107 40K atoms in 2 s, despite the low natural abundance of 0.01% of 40K. This is an excellent starting point for the experiment. We have very recently loaded 1x1010 39K atoms into a magnetic trap, where it will act as the coolant for 6Li and 40K. By only ... hot room yoga downtownWebThe exceedingly low energy regimes for ultracold molecules represent a new playground for chemical physics where quantum behaviors play a dominant role in molecular interaction and dynamics. Unique and complex molecular energy structure provides new opportunities for sensive probe of fundamental physics. The anisotropic and long-range dipolar ... hot roots fix for relaxed hair

"WebThe relaxation of isolated quantum many-body systems is a major unsolved problem connecting statistical and quantum physics. Studying such relaxation processes remains a challenge despite considerable efforts. Experimentally, it requires the creation and manipulation of well-controlled and truly isolated quantum systems. In this context, … " - Ultracold atoms out of equilibrium

Ultracold atoms out of equilibrium

“Ultracold atoms in optical lattices out-of-equilibrium

Web4 Mar 2024 · We studied a single atom trapped in an optical tweezer interacting with a thermal bath of ultracold atoms of a different species. Because of the collisions between the trapped atom and the bath atoms, the trapped atom undergoes changes in its vibrational states occupation to reach thermal equilibrium with the bath. By using Monte Carlo … WebUltracold atoms have a wide range of applications - including improved atomic clocks, gyroscopes, and sensing of gravitational and magnetic fields - because they are extremely …

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Web10 Mar 2015 · The relaxation of isolated quantum many-body systems is a major unsolved problem connecting statistical and quantum physics. Studying such relaxation processes remains a challenge despite considerable efforts. Experimentally, it requires the creation and manipulation of well-controlled and truly isolated quantum systems. In this context, … WebPrethermalization and universal dynamics in near-integrable quantum systems. Tim Langen, Thomas Gasenzer, Jörg Schmiedmayer. Comments: 44 pages, 12 figures; review article …

Web14 Jun 2024 · Ultracold atomic gases provide a promising setting to explore these phenomena. Theoretically speaking, the heavily-relied-upon truncated Wigner … WebQuantum systems engineering. Research in our group focuses on theoretical studies of quantum optical platforms including ultracold atoms, ion traps and cavities as well as quantum materials whose non-equilibrium dynamics can be …

WebA mean-field analysis shows stabilisation of the system in a pseudo-unstable equilibrium point in analogy with the pendulum case. Finally, a comparison with experimental results is made, and the work is concluded with a possible starting point for the development of a purely quantum theory which takes into account quantum fluctuations. WebThe Ultracold Atoms Group is the youngest group in the School of Physics and Astronomy. It is part of the Midlands Ultracold Atom Research Centre ( MUARC ), formed together with the Cold Atoms Group at the University of Birmingham. We started our work in 2008 and now have several laboratory setups with atomic gases very close to absolute zero ...

Web4 Feb 2003 · Revolutions in computing Find out how scientists are exploiting digital technologies to understand online behaviour and drive research progress; ... The ions, however, retain the millikelvin temperatures of the neutral atoms. This type of non-equilibrium ultracold plasma evolves rapidly, and many fundamental questions about its …

WebWe use ultracold atoms trapped in an optical lattice—a crystal of light—to study Hubbard models, which are paradigms of strongly correlated materials. Bose-and Fermi-Hubbard models are studied by our group. ... dynamics and out-of-equilibrium phenomena in Hubbard models, and disorder-induced quantum localization. Our signficant results include: linear regression closed form python linear regression code in python sklearnWeb2 Jan 2015 · In this context, ultracold neutral atoms provide unique opportunities to understand non-equilibrium phenomena because of the large set of available methods to … linear regression code in sklearnWeb15 Jul 2024 · Cold-atom-based sensor for measuring pressure in the ultra-high vacuum domain Ongoing NIST is building a cold-atom vacuum sensor (CAVS) that will be able to measure pressures in the ultra-high vacuum (UHV) regime corresponding to pressures less Controlling collisions between laser-cooled atoms using magnetic fields and nano-eV … hot rootstock crossword clueWebSo far, I was working in Academic Research on ultracold atoms and condensed matter theory, using high performance computing. ... and out-of-equilibrium behavior. For this purpose, I was using analytical calculations (linear algebra, non linear differential equations) and high performance computing (C, C++). I have co-supervised two Master ... linear regression clusteringWeb14 Apr 2024 · We measured the velocity distribution of ions in the ultracold neutral plasma (UNP) during its early evolution by the technique of velocity map imaging. ... The ion temperature during the phase of ion equilibrium was obtained experimentally through this method. The Coulomb coupling parameter of ions in the UNP after disorder-induced … linear regression classification algorithmWebAbsorption imaging of ultracold atoms is the foundation for quantitative extraction of information from experiments with ultracold atoms. Due to the limited exposure time available in these systems, the signal-to-noise ratio is largest for high intensity absorption imaging where the intensity of the imaging light is on the order of the saturation intensity. linear regression code in machine learning