Schrödinger-cat states: size classification based on evolution or dissipation

Gunnar Bjork; Piero G. L. Mana

doi:10.1117/12.547048

25 May 2004 Schroedinger-cat states: size classification based on evolution or dissipation

Gunnar Bjork, Piero G. L. Mana

Proceedings Volume 5468, Fluctuations and Noise in Photonics and Quantum Optics II; (2004) https://doi.org/10.1117/12.547048
Event: Second International Symposium on Fluctuations and Noise, 2004, Maspalomas, Gran Canaria Island, Spain

Abstract

The issue of estimating how "macroscopic" a superposition state is, can be addressed by analysing the rapidity of the state's evolution under a preferred observable, compared to that of the states forming the superposition. This fast evolution, which arises from the larger dispersion of the superposition state for the preferred operator, also represents a useful characteristic for interferometric applications. This approach can be compared to others in which a superposition's macroscopality is estimated in terms of the fragility to dissipation.

Citation Download Citation

Gunnar Bjork and Piero G. L. Mana "Schroedinger-cat states: size classification based on evolution or dissipation", Proc. SPIE 5468, Fluctuations and Noise in Photonics and Quantum Optics II, (25 May 2004); https://doi.org/10.1117/12.547048

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