dorsal/arxiv
View SchemaReliability of the beamsplitter based Bell-state measurement
| Authors | Yoon-Ho Kim, Warren P. Grice |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0304066 |
| URL | https://arxiv.org/abs/quant-ph/0304066 |
| DOI | 10.1103/PhysRevA.68.062305 |
| Journal | Phys. Rev. A 68, 062305 (2003) |
Abstract
A linear 50/50 beamsplitter, together with a coincidence measurement, has been widely used in quantum optical experiments, such as teleportation, dense coding, etc., for interferometrically distinguishing, measuring, or projecting onto one of the four two-photon polarization Bell-states $|\psi^{(-)}>$. In this paper, we demonstrate that the coincidence measurement at the output of a beamsplitter cannot be used as an absolute identifier of the input state $|\psi^{(-)}>$ nor as an indication that the input photons have projected to the $|\psi^{(-)}>$ state.
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"abstract": "A linear 50/50 beamsplitter, together with a coincidence measurement, has\nbeen widely used in quantum optical experiments, such as teleportation, dense\ncoding, etc., for interferometrically distinguishing, measuring, or projecting\nonto one of the four two-photon polarization Bell-states $|\\psi^{(-)}\u003e$. In\nthis paper, we demonstrate that the coincidence measurement at the output of a\nbeamsplitter cannot be used as an absolute identifier of the input state\n$|\\psi^{(-)}\u003e$ nor as an indication that the input photons have projected to\nthe $|\\psi^{(-)}\u003e$ state.",
"arxiv_id": "quant-ph/0304066",
"authors": [
"Yoon-Ho Kim",
"Warren P. Grice"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.68.062305",
"journal_ref": "Phys. Rev. A 68, 062305 (2003)",
"title": "Reliability of the beamsplitter based Bell-state measurement",
"url": "https://arxiv.org/abs/quant-ph/0304066"
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