Projekteja vuodessa
Abstrakti
Phase transitions occur in a wide range of physical systems and are characterized by the abrupt change of a physical observable in response to the variation of an external control parameter. Phase transitions are not restricted to equilibrium situations but can also be found in nonequilibrium settings, both for classical and quantum mechanical systems. Here, we investigate a nonequilibrium phase transition in a single-electron micromaser consisting of a microwave cavity that is driven by the electron transport in a double quantum dot. For weak electron-photon couplings, only a tiny fraction of the transferred electrons are accompanied by the emission of photons into the cavity, which essentially remains empty. However, as the coupling is increased, many photons are suddenly emitted into the cavity. Employing ideas and concepts from full counting statistics and Lee-Yang theory, we analyze this nonequilibrium phase transition based on the dynamical zeros of the factorial moment generating function of the electronic charge transport statistics, and we find that the phase transition can be predicted from short-time measurements of the higher-order factorial cumulants. These results pave the way for further investigations of critical behavior in open quantum systems.
Alkuperäiskieli | Englanti |
---|---|
Artikkeli | 155421 |
Sivut | 1-13 |
Sivumäärä | 13 |
Julkaisu | Physical Review B |
Vuosikerta | 105 |
Numero | 15 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 28 huhtik. 2022 |
OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
Sormenjälki
Sukella tutkimusaiheisiin 'Nonequilibrium phase transition in a single-electron micromaser'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.Projektit
- 5 Päättynyt
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AoF_post doc _Brange: Lee-Yang theory of phase transitions in interacting quantum many-body systems
Norrman Brange, F. (Vastuullinen tutkija)
01/09/2020 → 31/08/2023
Projekti: Academy of Finland: Other research funding
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QuLeeYang: Lee-Yang theory of phase transitions in interacting quantum many-body systems
Raitio, R. (Vastuullinen tutkija)
31/08/2020 → 31/07/2022
Projekti: EU: MC
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Kvanttiteknologian huippuyksikkö
Flindt, C. (Vastuullinen tutkija), Potanina, E. (Projektin jäsen), Burset Atienza, P. (Projektin jäsen) & Pyhäranta, T. (Projektin jäsen)
01/01/2018 → 31/12/2020
Projekti: Academy of Finland: Other research funding