Details
| Original language | English |
|---|---|
| Article number | 032119 |
| Journal | Physical Review E |
| Volume | 94 |
| Issue number | 3 |
| Publication status | Published - 15 Sept 2016 |
| Externally published | Yes |
Abstract
By using a physically relevant and theory independent definition of measurement-based equilibration, we show quantitatively that equilibration is easier for quantum systems than for classical systems, in the situation where the initial state of the system is completely known (a pure state). This shows that quantum equilibration is a fundamental aspect of many quantum systems, while classical equilibration relies on experimental ignorance. When the state is not completely known (a mixed state), this framework also shows that quantum equilibration requires weaker conditions.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Statistical and Nonlinear Physics
- Mathematics(all)
- Statistics and Probability
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Physical Review E, Vol. 94, No. 3, 032119, 15.09.2016.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Comparing classical and quantum equilibration
AU - Malabarba, Artur S.L.
AU - Farrelly, Terry
AU - Short, Anthony J.
N1 - Funding information: A.J.S. acknowledges support from the Royal Society and FQXi through SVCF. A.S.L.M. acknowledges support from the CNPq. T.F. is grateful for support from the ERC grants QFTCMPS and SIQS and by the cluster of excellence EXC201 Quantum Engineering and Space-Time Research.
PY - 2016/9/15
Y1 - 2016/9/15
N2 - By using a physically relevant and theory independent definition of measurement-based equilibration, we show quantitatively that equilibration is easier for quantum systems than for classical systems, in the situation where the initial state of the system is completely known (a pure state). This shows that quantum equilibration is a fundamental aspect of many quantum systems, while classical equilibration relies on experimental ignorance. When the state is not completely known (a mixed state), this framework also shows that quantum equilibration requires weaker conditions.
AB - By using a physically relevant and theory independent definition of measurement-based equilibration, we show quantitatively that equilibration is easier for quantum systems than for classical systems, in the situation where the initial state of the system is completely known (a pure state). This shows that quantum equilibration is a fundamental aspect of many quantum systems, while classical equilibration relies on experimental ignorance. When the state is not completely known (a mixed state), this framework also shows that quantum equilibration requires weaker conditions.
UR - http://www.scopus.com/inward/record.url?scp=84990211625&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.94.032119
DO - 10.1103/PhysRevE.94.032119
M3 - Article
AN - SCOPUS:84990211625
VL - 94
JO - Physical Review E
JF - Physical Review E
SN - 2470-0045
IS - 3
M1 - 032119
ER -