dorsal/arxiv
View SchemaConnecting the geometric measure of entanglement and entanglement witnesses
| Authors | Tzu-Chieh Wei, Paul M. Goldbart |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0303079 |
| URL | https://arxiv.org/abs/quant-ph/0303079 |
Abstract
The geometric measure of entanglement is an approach to quantifying entanglement that is based on the Hilbert-space distance (or, equivalently, angle) between pure states and their best unentangled approximants. An entanglement witness is an operator that reveals entanglement for a given entangled state. A connection is identified between entanglement witnesses and the geometric measure of entanglement. This offers a new interpretation of the geometric measure of entanglement of a state, and renders it experimentally verifiable, doing so most readily for states that are pure.
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"abstract": "The geometric measure of entanglement is an approach to quantifying\nentanglement that is based on the Hilbert-space distance (or, equivalently,\nangle) between pure states and their best unentangled approximants. An\nentanglement witness is an operator that reveals entanglement for a given\nentangled state. A connection is identified between entanglement witnesses and\nthe geometric measure of entanglement. This offers a new interpretation of the\ngeometric measure of entanglement of a state, and renders it experimentally\nverifiable, doing so most readily for states that are pure.",
"arxiv_id": "quant-ph/0303079",
"authors": [
"Tzu-Chieh Wei",
"Paul M. Goldbart"
],
"categories": [
"quant-ph"
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"title": "Connecting the geometric measure of entanglement and entanglement witnesses",
"url": "https://arxiv.org/abs/quant-ph/0303079"
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