Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Thywissen, Joseph H."'
Spin Rotations in a Bose-Einstein Condensate Driven by Counterflow and Spin-independent Interactions
Publikováno v:
Physical Review Letters 132, 173401 (2024)
We observe spin rotations caused by atomic collisions in a non-equilibrium Bose-condensed gas of $^{87}$Rb. Reflection from a pseudomagnetic barrier creates counterflow in which forward- and backward-propagating matter waves have partly transverse sp
Externí odkaz:
http://arxiv.org/abs/2308.16069
Autor:
Jackson, Kenneth G., Dale, Colin J., Maki, Jeff, Xie, Kevin G. S., Olsen, Ben A., Ahmed-Braun, Denise J. M., Zhang, Shizhong, Thywissen, Joseph H.
Publikováno v:
Physical Review X 13, 201013 (2023)
Orbital degrees of freedom play an essential role in metals, semiconductors, and strongly confined electronic systems. Experiments with ultracold atoms have used highly anisotropic confinement to explore low-dimensional physics, but typically elimina
Externí odkaz:
http://arxiv.org/abs/2206.10415
Autor:
Venu, Vijin, Xu, Peihang, Mamaev, Mikhail, Corapi, Frank, Bilitewski, Thomas, D'Incao, Jose P., Fujiwara, Cora J., Rey, Ana Maria, Thywissen, Joseph H.
Publikováno v:
Nature 613, 262-267 (2023)
Exchange-antisymmetric pair wavefunctions in fermionic systems can give rise to unconventional superconductors and superfluids with non-trivial transport properties. The realisation of these states in controllable quantum systems, such as ultracold g
Externí odkaz:
http://arxiv.org/abs/2205.13506
Autor:
Mamaev, Mikhail, He, Peiru, Bilitewski, Thomas, Venu, Vijin, Thywissen, Joseph H., Rey, Ana Maria
Publikováno v:
Phys. Rev. Lett. 127, 143401 (2021)
We consider the non-equilibrium orbital dynamics of spin-polarized ultracold fermions in the first excited band of an optical lattice. A specific lattice depth and filling configuration is designed to allow the $p_x$ and $p_y$ excited orbital degrees
Externí odkaz:
http://arxiv.org/abs/2104.06480
Autor:
Ahmed-Braun, Denise J. M., Jackson, Kenneth G., Smale, Scott, Dale, Colin J., Olsen, Ben A., Kokkelmans, Servaas J. J. M. F., Julienne, Paul S., Thywissen, Joseph H.
Publikováno v:
Phys. Rev. Research 3, 033269 (2021)
We study the near-threshold molecular and collisional physics of a strong $^{40}$K p-wave Feshbach resonance through a combination of measurements, numerical calculations, and modeling. Dimer spectroscopy employs both radio-frequency spin-flip associ
Externí odkaz:
http://arxiv.org/abs/2101.02700
Publikováno v:
Advanced Quantum Technologies 3, 1900132 (2020)
We introduce protocols for designing and manipulating qubits with ultracold alkali atoms in 3D optical lattices. These qubits are formed from two-atom spin superposition states that create a decoherence-free subspace immune to stray magnetic fields,
Externí odkaz:
http://arxiv.org/abs/1911.01949
Akademický článek
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Autor:
Smale, Scott, He, Peiru, Olsen, Ben A., Jackson, Kenneth G., Sharum, Haille, Trotzky, Stefan, Marino, Jamir, Rey, Ana Maria, Thywissen, Joseph H.
Publikováno v:
Science Advances 5, eaax1568 (2019)
A proposed paradigm for out-of-equilibrium quantum systems is that an analogue of quantum phase transitions exists between parameter regimes of qualitatively distinct time-dependent behavior. Here, we present evidence of such a transition between dyn
Externí odkaz:
http://arxiv.org/abs/1806.11044
Autor:
Enss, Tilman, Thywissen, Joseph H.
Publikováno v:
Annu. Rev. Condens. Matter Phys. 10, 85-106 (2019)
We review recent advances in experimental and theoretical understanding of spin transport in strongly interacting Fermi gases. The central new phenomenon is the observation of a lower bound on the (bare) spin diffusivity in the strongly interacting r
Externí odkaz:
http://arxiv.org/abs/1805.05354
Autor:
Anderson, Rhys, Wang, Fudong, Xu, Peihang, Venu, Vijin, Trotzky, Stefan, Chevy, Frédéric, Thywissen, Joseph H.
Publikováno v:
Phys. Rev. Lett. 122, 153602 (2019)
We measure the conductivity of neutral fermions in a cubic optical lattice. Using in-situ fluorescence microscopy, we observe the alternating current resultant from a single-frequency uniform force applied by displacement of a weak harmonic trapping
Externí odkaz:
http://arxiv.org/abs/1712.09965