Zero-point oscillations, zero-point fluctuations, and fluctuations of zero-point oscillations

Several physical effects and methodological issues relating to the ground state of an oscillator are considered. Even in the simplest case of an ideal lossless harmonic oscillator, its ground state exhibits properties that are unusual from the classical point of view. In particular, the mean value of the product of two non-negative observables, kinetic and potential energies, is negative in the ground state. It is shown that semiclassical and rigorous quantum approaches yield substantially different results for the ground state energy fluctuations of an oscillator with finite losses. The dependence of zero-point fluctuations on the boundary conditions is considered. Using this dependence, it is possible to transmit information without emitting electromagnetic quanta. Fluctuations of electromagnetic pressure of zero-point oscillations are analyzed, and the corresponding mechanical friction is considered. This friction can be viewed as the most fundamental mechanism limiting the quality factor of mechanical oscillators. Observation of these effects exceeds the possibilities of contemporary experimental physics but almost undoubtedly will be possible in the near future.

PACS: 03.65.Ta, 03.65.Yz, 03.67.Hk (all)
DOI: 10.1070/PU2003v046n03ABEH001365
URL: https://ufn.ru/en/articles/2003/3/c/
Web of Science

000184112900003
Citation: Khalili F Ya "Zero-point oscillations, zero-point fluctuations, and fluctuations of zero-point oscillations" Phys. Usp. 46 293–307 (2003)

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Оригинал: Халили Ф Я «Нулевые колебания, нулевые флуктуации и флуктуации нулевых колебаний» УФН 173 301–316 (2003); DOI: 10.3367/UFNr.0173.200303c.0301

References (24) Cited by (7) Similar articles (20) ↓

B.B. Kadomtsev “Irreversibility in quantum mechanics” 46 1183–1201 (2003)
S.P. Vyatchanin, F.Ya. Khalili “’Interaction-free’ measurement: possibilities and limitations” 47 705–716 (2004)
A.M. Zheltikov “The critique of quantum mind: measurement, consciousness, delayed choice, and lost coherence” 61 1016–1025 (2018)
B.Ya. Zel’dovich “Impedance and parametric excitation of oscillators” 51 465–484 (2008)
M.B. Mensky “Measurability of quantum fields and the energy—time uncertainty relation” 54 519–528 (2011)
A.S. Trushechkin, E.O. Kiktenko et al “Security of the decoy state method for quantum key distribution” 64 88–102 (2021)
V.B. Braginskii “Adolescent years of experimental physics” 46 81–87 (2003)
V.V. Mityugov “The tree of paradox” 36 (8) 744–753 (1993)
V.P. Demutskii, R.V. Polovin “Conceptual problems in quantum mechanics” 35 (10) 857–896 (1992)
A.S. Tarnovskii “A new representation of quantum mechanics” 33 (10) 862–864 (1990)
A.V. Belinsky “On David Bohm's 'pilot-wave' concept” 62 1268–1278 (2019)
V.Yu. Shishkov, E.S. Andrianov et al “Relaxation of interacting open quantum systems” 62 510–523 (2019)
E.V. Shuryak “Stochastic trajectory generation by computer” 27 448–453 (1984)
A.N. Rubtsov “On the question of measurement in quantum mechanics” 66 734–740 (2023)
A.I. Akhiezer, R.V. Polovin “Why IT IS impossible to introduce hidden parameters into quantum mechanics” 15 500–512 (1973)
V.P. Bykov “Squeezed light and nonclassical motion in mechanics” 36 (9) 841–850 (1993)
V.I. Tatarskii “Example of the description of dissipative processes in terms of reversible dynamic equations and some comments on the fluctuation-dissipation theorem” 30 134–152 (1987)
V.I. Ritus “Finite value of the bare charge and the relation of the fine structure constant ratio for physical and bare charges to zero-point oscillations of the electromagnetic field in a vacuum” 65 468–486 (2022)
B.N. Shvilkin “On measuring the Debye radius in an unstable gas discharge plasma” 41 509–510 (1998)
V.A. Bordovitsyn, I.M. Ternov, V.G. Bagrov “Spin light” 38 1037–1047 (1995)

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