Homodyne measurement of exponential phase momenta for quantum-phase reconstruction
| Autor: | G. Breitenbach, J. Mlynek, Stephan Schiller, Tomáš Opatrný, M. Dakna, Dirk-Gunnar Welsch |
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| Rok vydání: | 1998 |
| Předmět: |
Density matrix
Quantum optics Physics business.industry Phase (waves) Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Exponential function Optics Homodyne detection Quantum state Quantum mechanics Wigner distribution function Electrical and Electronic Engineering Physical and Theoretical Chemistry business Quantum |
| Zdroj: | Optics Communications. 152:289-292 |
| ISSN: | 0030-4018 |
| Popis: | We directly sample the exponential momenta of the canonical phase for various quantum states from the homodyne output. The method enables us to study the phase properties experimentally, without making the detour via reconstructing the density matrix or the Wigner function and calculating the phase statistics from them. In particular, combing the measurement with a measurement of the photon-number variance, we verify fundamental number–phase uncertainty. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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