The phase-sensitivity of a Mach–Zehnder interferometer for Fock state inputs
| Autor: | Chung Ki Hong, Jongtae Shin, Heonoh Kim, Goodong Park, Tae Gon Noh, Taesoo Kim, Yang Ha |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Physics
Quantum optics Photon business.industry Phase (waves) Mach–Zehnder interferometer Interference (wave propagation) Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Interferometry Optics Fock state Quantum mechanics Heisenberg limit Electrical and Electronic Engineering Physical and Theoretical Chemistry business |
| Zdroj: | Optics Communications. 156:37-42 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/s0030-4018(98)00428-3 |
| Popis: | Phase-sensitivity of some different measurement schemes with a Mach–Zehnder interferometer is studied. The input light is considered to be in a photon number state and the detectors are assumed to be ideal with quantum efficiency of unity. Direct calculation of the operators corresponding to the measurement schemes shows that the uncertainty of the phase-shift measurement can be reduced to the Heisenberg limit of 1/ N ( N is the total number of the photons in the input state) with certain measurement schemes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect