Zobrazeno 1 - 10
of 15
pro vyhledávání: '"David M. Weld"'
Autor:
Ethan Q. Simmons, Roshan Sajjad, Kimberlee Keithley, Hector Mas, Jeremy L. Tanlimco, Eber Nolasco-Martinez, Yifei Bai, Glenn H. Fredrickson, David M. Weld
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p L042009 (2023)
Can quantum mechanical thermodynamic engines outperform their classical counterparts? To address one aspect of this question, we experimentally realize and characterize an isentropic thermodynamic engine that uses a Bose-condensed working fluid. In t
Externí odkaz:
https://doaj.org/article/449a1c2a4c0a45d0b8c17fd503049237
Autor:
Javier Argüello-Luengo, Javier Rivera-Dean, Philipp Stammer, Andrew S. Maxwell, David M. Weld, Marcelo F. Ciappina, Maciej Lewenstein
Publikováno v:
PRX Quantum, Vol 5, Iss 1, p 010328 (2024)
The demanding experimental access to the ultrafast dynamics of materials challenges our understanding of their electronic response to applied strong laser fields. For this purpose, trapped ultracold atoms with highly controllable potentials have beco
Externí odkaz:
https://doaj.org/article/30de3a5570fa4b819e6690f11373469f
Autor:
Roshan Sajjad, Jeremy L. Tanlimco, Hector Mas, Alec Cao, Eber Nolasco-Martinez, Ethan Q. Simmons, Flávio L. N. Santos, Patrizia Vignolo, Tommaso Macrì, David M. Weld
Publikováno v:
Physical Review X, Vol 12, Iss 1, p 011035 (2022)
A particle in an Anderson-localized system, if launched in any direction, should, on average, return to its starting point and stay there. Despite the central role played by Anderson localization in the modern understanding of condensed matter, this
Externí odkaz:
https://doaj.org/article/2031e6c36d674ee4bed1438f3a742361
Autor:
Ruwan Senaratne, Shankari V. Rajagopal, Toshihiko Shimasaki, Peter E. Dotti, Kurt M. Fujiwara, Kevin Singh, Zachary A. Geiger, David M. Weld
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)
There is a close theoretical correspondence between the ultrafast dynamics of bound electrons and the slow dynamics of trapped ultracold atoms. Here the authors exploit this mapping to experimentally simulate ultrafast phenomena with a large temporal
Externí odkaz:
https://doaj.org/article/2e51ae8056054f38bf48d519231c3c99
Autor:
Alec Cao, Roshan Sajjad, Ethan Q. Simmons, Cora J. Fujiwara, Toshihiko Shimasaki, David M. Weld
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 032032 (2020)
In periodic quantum systems which are both homogeneously tilted and driven, the interplay between drive and Bloch oscillations controls transport dynamics. Using a quantum gas in a modulated optical lattice, we show experimentally that inhomogeneity
Externí odkaz:
https://doaj.org/article/1aec25226f13411e97e59a0f757ca4df
While inhomogeneous viscosity has been identified as a ubiquitous feature of the cellular interior, its implications for particle mobility and concentration at different length scales remain largely unexplored. In this work, we use agent-based simula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a5ecf0b0ddb80eebb3b04cda8e13b1c
https://doi.org/10.1101/2022.08.30.505927
https://doi.org/10.1101/2022.08.30.505927
Autor:
Toshihiko Shimasaki, H. Esat Kondakci, Max Prichard, Jared Pagett, Yifei Bai, Peter Dotti, Alec Cao, Tsung-Cheng Lu, Tarun Grover, David M. Weld
Publikováno v:
Conference on Lasers and Electro-Optics.
We report an experimental study investigating transport phenomena of ultracold atoms loaded in a primary optical lattice and periodically-kicked with an incommensurate optical lattice. We observe signatures of an extended multifractal phase.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b6e1506f26af8e68124d1e344b2e625
https://doi.org/10.1364/cleo_qels.2022.fm4d.3
https://doi.org/10.1364/cleo_qels.2022.fm4d.3
Publisher Correction: Interaction-driven breakdown of dynamical localization in a kicked quantum gas
Autor:
Alec Cao, Roshan Sajjad, Hector Mas, Ethan Q. Simmons, Jeremy L. Tanlimco, Eber Nolasco-Martinez, Toshihiko Shimasaki, H. Esat Kondakci, Victor Galitski, David M. Weld
Publikováno v:
Nature Physics. 18:1379-1379
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4be1aa3a3468e394e42065632f7f065a
https://doi.org/10.1038/s41567-022-01810-w
https://doi.org/10.1038/s41567-022-01810-w
Autor:
Roshan Sajjad, Jeremy L. Tanlimco, Hector Mas, Alec Cao, Eber Nolasco-Martinez, Ethan Q. Simmons, Flávio L. N. Santos, Patrizia Vignolo, Tommaso Macrì, David M. Weld
A particle in an Anderson-localized system, if launched in any direction, should on average return to its starting point and stay there. Despite the central role played by Anderson localization in the modern understanding of condensed matter, this "q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb22d3fb46bdaab6bbedffeac17ad882
http://arxiv.org/abs/2109.00696
http://arxiv.org/abs/2109.00696
Autor:
David M Weld
We have built an ultra-high vacuum experimental apparatus for trapping and cooling of strontium, demonstrated its operation, and used it to trap and cool all four stable isotopes of this alkaline earth metal. As part of the design and construction of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a189f298bb595e62a7469b8735772df
https://doi.org/10.21236/ada623194
https://doi.org/10.21236/ada623194