One-step direct measurement of the entangled W states with cross-Kerr nonlinearity
arXiv:2009.05943 · doi:10.1007/s12648-021-02097-y
Abstract
We propose a scheme to directly measure the entangled W states with cross-Kerr nonlinearity mediums. This scheme can measure three-photon, four-photon, and even N-photon W states in one step. Only PBSs and cross-Kerr nonlinearity mediums are used in this scheme, which is feasible for experiments. We describe the three-photon W states measurement process and extend it to four-photon and N-photon W states.
8 pages, 3 figures
References in corpus (6)
- Soundness and completeness of quantum root-mean-square errors
- Generalized Quantum State Sharing
- Emission of photon pairs by mechanical stimulation of the squeezed vacuum
- Fast and high-fidelity generation of steady-state entanglement using pulse modulation and parametric amplification
- How difficult is it to prepare a quantum state?
- Measurement Device Independent Verification of Quantum Channels