Conditions for Factorizable Output From a Beam splitter
arXiv:0906.1885 · doi:10.1103/PhysRevA.79.062303
Abstract
A beam splitter is one of the most important devices in an optics laboratory because of its handiness and versatility; equivalent devices are found in various quantum systems to couple two subsystems or to interfere them. While it is normal that two independent input fields are superposed at the beam splitter to give correlated outputs, identical Gaussian states interfere there to produce totally independent output fields. We prove that Gaussian states with same the variance are the only states which bring about factorizable output fields.
6 pages, published in PRA
References in corpus (13)
- Generation of a superposition of odd photon number states for quantum information networks
- Entanglement by a beam splitter: nonclassicality as a prerequisite for entanglement
- Non-gaussian statistics from individual pulses of squeezed light
- Continuous-variable teleportation improvement by photon subtraction via conditional measurement
- Optical Simulation of Quantum Logic
- Multiphoton Quantum Optics and Quantum State Engineering
- Controllable generation of highly nonclassical states from nearly pure squeezed vacua
- Recent developments in photon-level operations on travelling light fields
- Generation of arbitrary quantum states of traveling fields
- Deterministic linear optics quantum computation utilizing linked photon circuits
- Conditional generation of arbitrary single-mode quantum states of light by repeated photon subtractions
- A Note on Linear Optics Gates by Post-Selection
- Quantum state engineering assisted by entanglement
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- Gaussian phase sensitivity of boson-sampling-inspired strategies
- A stable quantum Darmois-Skitovich theorem