Copertina

Experimental extraction of the quantum effective action for a non-equilibrium many-body system

On the fundamental level, quantum fluctuations or entanglement lead to complex dynamical behaviour in many-body systems for which a description as emergent phenomena can be found within the framework of quantum field theory. A central quantity in these efforts, containing all information about the m...

Descrizione completa

Salvato in:
Dettagli Bibliografici
Autori principali: Prüfer, Maximilian (Autore) , Zache, Torsten Victor (Autore) , Kunkel, Philipp (Autore) , Lannig, Stefan (Autore) , Bonnin, Alexis (Autore) , Strobel, Helmut (Autore) , Berges, Jürgen (Autore) , Oberthaler, Markus K. (Autore)
Natura: Article (Journal)
Lingua:inglese
Pubblicazione: 15 June 2020
In: Nature physics
Year: 2020, Volume: 16, Fascicolo: 10, Pages: 1012-1016
ISSN:1745-2481
DOI:10.1038/s41567-020-0933-6
Accesso online:Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1038/s41567-020-0933-6
Verlag, lizenzpflichtig, Volltext: https://www.nature.com/articles/s41567-020-0933-6
Testo
Note sull'autore:Maximilian Prüfer, Torsten V. Zache, Philipp Kunkel, Stefan Lannig, Alexis Bonnin, Helmut Strobel, Jürgen Berges and Markus K. Oberthaler
Descrizione
Riassunto:On the fundamental level, quantum fluctuations or entanglement lead to complex dynamical behaviour in many-body systems for which a description as emergent phenomena can be found within the framework of quantum field theory. A central quantity in these efforts, containing all information about the measurable physical properties, is the quantum effective action. Though non-equilibrium quantum dynamics can be exactly formulated in terms of the quantum effective action, finding solutions is in general beyond the capabilities of classical computers. Here, we present a strategy to determine the non-equilibrium quantum effective action using analogue quantum simulators, and demonstrate our method experimentally with a quasi-one-dimensional spinor Bose gas out of equilibrium.
Descrizione del documento:Das PDF enthält zusätzlich einen Anhang von 7 Seiten
Gesehen am 23.06.2020
Descrizione fisica:Online Resource
ISSN:1745-2481
DOI:10.1038/s41567-020-0933-6

Documenti analoghi