Zobrazeno 1 - 10
of 295
pro vyhledávání: '"Andreas Buchleitner"'
Publikováno v:
Physical Review Research, Vol 5, Iss 2, p 023060 (2023)
We port the concept of non-Markovian quantum dynamics to the many-particle realm, by a suitable decomposition of the many-particle Hilbert space. We show how the specific structure of many-particle states determines the observability of non-Markovian
Externí odkaz:
https://doaj.org/article/cac76e32f94646708964fce9f6f8e730
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043101 (2022)
We show how coherences between identical constituents of a many-body quantum state can be interrogated by suitable correlation functions and identify sufficient conditions under which low-order correlators fully characterize many-body coherences, as
Externí odkaz:
https://doaj.org/article/9336aaebfda84bd38af1a6c543158ad6
Publikováno v:
New Journal of Physics, Vol 24, Iss 1, p 013024 (2022)
Manifestations of dipole–dipole interactions in dilute thermal gases are difficult to sense because of strong inhomogeneous broadening. Recent experiments reported signatures of such interactions in fluorescence detection-based measurements of mult
Externí odkaz:
https://doaj.org/article/2e1e9f2a34cb42ec861d3b51034bbadb
Autor:
Julian Münzberg, Christoph Dittel, Maxime Lebugle, Andreas Buchleitner, Alexander Szameit, Gregor Weihs, Robert Keil
Publikováno v:
PRX Quantum, Vol 3, Iss 1, p 010901 (2022)
Externí odkaz:
https://doaj.org/article/71f94120bf334e87b26807de5129886c
Publikováno v:
Physical Review X, Vol 11, Iss 3, p 031041 (2021)
We formulate a general theory of wave-particle duality for many-body quantum states, which quantifies how wavelike and particlelike properties balance each other. Much as in the well-understood single-particle case, which-way information—here, on t
Externí odkaz:
https://doaj.org/article/586e4bf99c494f258036105a9a905686
Autor:
Julian Münzberg, Christoph Dittel, Maxime Lebugle, Andreas Buchleitner, Alexander Szameit, Gregor Weihs, Robert Keil
Publikováno v:
PRX Quantum, Vol 2, Iss 2, p 020326 (2021)
We investigate, in a four-photon interference experiment in a laser-written waveguide structure, how symmetries control the suppression of many-body output events of a J_{x} unitary. We show that totally destructive interference does not require mutu
Externí odkaz:
https://doaj.org/article/ca0ba5c5560948d5bd9e71afaf21eed5
Publikováno v:
New Journal of Physics, Vol 23, Iss 12, p 123036 (2021)
We investigate the chaotic phase of the Bose–Hubbard model (Pausch et al 2021 Phys. Rev. Lett. 126 150601) in relation to the bosonic embedded random matrix ensemble, which mirrors the dominant few-body nature of many-particle interactions, and hen
Externí odkaz:
https://doaj.org/article/64c35e8553eb408dbb0046e3ed1143f1
Publikováno v:
New Journal of Physics, Vol 23, Iss 7, p 073028 (2021)
We show how to characterize the indistinguishability of up to four identical, bosonic or fermionic particles, which are rendered partially distinguishable through their internal degrees of freedom prepared in mixed states. This is accomplished via th
Externí odkaz:
https://doaj.org/article/f626d36424dd43c890b558a9cc4d6d05
Publikováno v:
PRX Quantum, Vol 2, Iss 1, p 010314 (2021)
A comprehensive description of molecular electron-transfer reactions is essential for our understanding of fundamental phenomena in bioenergetics and molecular electronics. However, experimental studies of molecular systems in condensed-phase environ
Externí odkaz:
https://doaj.org/article/620a1079497940a6a39c68f31e246d76
Autor:
Frank Schäfer, Miguel A. Bastarrachea-Magnani, Axel U. J. Lode, Laurent de Forges de Parny, Andreas Buchleitner
Publikováno v:
Entropy, Vol 22, Iss 4, p 382 (2020)
We examine the spectral structure and many-body dynamics of two and three repulsively interacting bosons trapped in a one-dimensional double-well, for variable barrier height, inter-particle interaction strength, and initial conditions. By exact diag
Externí odkaz:
https://doaj.org/article/c46f701402a54fe5a0a3b5acc891c64c