Phys. Rev. Lett. 54, 725 - 728 (1985)
Quantum Noise and the Threshold of Hearing
William Bialek *,†
Department of Biophysics and Medical Physics, and Biology and Medicine Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720, and Institute for Theoretical Physics, University of California, Santa Barbara, California 93106
Allan Schweitzer
Coleman Memorial Laboratory, University of California, San Francisco, California 94133
See Also: Erratum
Received 16 March 1984
We argue that the sensitivity of the ear reaches a limit imposed by the uncertainty principle. This is possible only if the receptor cell holds the detector elements in a special nonequilibrium state which has the same noise characteristics as a ground (T=0 K) state. To accomplish this "active cooling" the molecular dynamics of the system must maintain quantum mechanical coherence over the time scale of the measurement.
@1985 The American Physical Society
URL: http://link.aps.org/doi/10.1103/PhysRevLett.54.725
DOI: 10.1103/PhysRevLett.54.725
PACS: 87.10.+e, 03.65.Bz, 43.60.+d, 43.63.+n
* Author to whom correspondence should be addressed.
† Present address.
See Also
Erratum: William Bialek and Allan Schweitzer, Erratum: Quantum noise and the threshold of hearing [Phys. Rev. Lett. 54, 725 (1985)], Phys. Rev. Lett. 56, 996 (1986)
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