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@article{Marques:2020:10.1038/s41467-020-15154-7,
author = {Marques, Rodrigues J and Walker, BT and Dhar, HS and Oulton, R and Mintert, F and Nyman, RA},
doi = {10.1038/s41467-020-15154-7},
journal = {Nature Communications},
title = {Non-stationary statistics and formation jitter in transient photon condensation},
url = {http://dx.doi.org/10.1038/s41467-020-15154-7},
volume = {11},
year = {2020}
}

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TY  - JOUR
AB  - While equilibrium phase transitions are easily described by order parameters and free-energylandscapes, for their non-stationary counterparts these quantities are usually ill-defined. Here,we probe transient non-equilibrium dynamics of an optically pumped, dye-filled microcavity. Wequench the system to a far-from-equilibrium state and find delayed condensation close to a criticalexcitation energy, a transient equivalent of critical slowing down. Besides number fluctuations nearthe critical excitation energy, we show that transient phase transitions exhibit timing jitter in thecondensate formation. This jitter is a manifestation of the randomness associated with spontaneousemission, showing that condensation is a stochastic, rather than deterministic process. Despite thenon-equilibrium character of this phase transition, we construct an effective free-energy landscapethat describes the formation jitter and allows, in principle, its generalization to a wider class ofprocesses.
AU  - Marques,Rodrigues J
AU  - Walker,BT
AU  - Dhar,HS
AU  - Oulton,R
AU  - Mintert,F
AU  - Nyman,RA
DO  - 10.1038/s41467-020-15154-7
PY  - 2020///
SN  - 2041-1723
TI  - Non-stationary statistics and formation jitter in transient photon condensation
T2  - Nature Communications
UR  - http://dx.doi.org/10.1038/s41467-020-15154-7
UR  - http://hdl.handle.net/10044/1/78785
VL  - 11
ER  -

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