Preparation of entangled states of two photons in several spatial modes
arXiv:0710.0980 · doi:10.1103/PhysRevA.77.023802
Abstract
We describe a protocol capable of preparing an arbitrary state of two photons in several spatial modes using pairs of photons generated by spontaneous parametric down-conversion, linear optical elements and single-photon detectors or post-selection. The protocol involves unitary and non-unitary transformations realizable by beam splitters and phase shifters. Non-unitary transformations are implemented by attenuation filters. The protocol contains several optimization capabilities with the goal of improving overall probability of its success. We also show how entangled two-photon states required for quantum computing with linear optics can be prepared using a very simple and feasible scheme.
9 pages, 9 figures, REVTeX4
References in corpus (11)
- Experimental quantum teleportation
- Experimental Quantum State Tomography of Optical Fields and Ultrafast Statistical Sampling
- Generation of a superposition of odd photon number states for quantum information networks
- Quantum homodyne tomography of a two-photon Fock state
- Tomographic reconstruction of the single-photon Fock state by high-frequency homodyne detection
- Generation of Large Number-Path Entanglement Using Linear Optics and Feed-Forward
- Experimental phase-covariant cloning of polarization states of single photons
- A Bootstrapping Approach for Generating Maximally Path-Entangled Photon States
- General linear-optical quantum state generation scheme: Applications to maximally path-entangled states
- Conditional generation of path-entangled optical NOON states
- Photon number states generated from a continuous-wave light source