Please use this identifier to cite or link to this item:
|Title:||Witnessing trustworthy single-photon entanglement with local homodyne measurements|
|Citation:||Morin, O., Bancal, J.-D., Ho, M., Sekatski, P., D'Auria, V., Gisin, N., Laurat, J., Sangouard, N. (2013-03-25). Witnessing trustworthy single-photon entanglement with local homodyne measurements. Physical Review Letters 110 (13) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.110.130401|
|Abstract:||Single-photon entangled states, i.e., states describing two optical paths sharing a single photon, constitute the simplest form of entanglement. Yet they provide a valuable resource in quantum information science. Specifically, they lie at the heart of quantum networks, as they can be used for quantum teleportation, swapped, and purified with linear optics. The main drawback of such entanglement is the difficulty in measuring it. Here, we present and experimentally test an entanglement witness allowing one to say whether a given state is path entangled and also that entanglement lies in the subspace, where the optical paths are each filled with one photon at most, i.e., refers to single-photon entanglement. It uses local homodyning only and relies on no assumption about the Hilbert space dimension of the measured system. Our work provides a simple and trustworthy method for verifying the proper functioning of future quantum networks. © 2013 American Physical Society.|
|Source Title:||Physical Review Letters|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jun 17, 2018
WEB OF SCIENCETM
checked on Jun 4, 2018
checked on Mar 12, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.