dorsal/arxiv
View SchemaMaximum speed of quantum gate operation
| Authors | Lev B. Levitin, Tommaso Toffoli, Zachary Walton |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0211167 |
| URL | https://arxiv.org/abs/quant-ph/0211167 |
Abstract
We consider a quantum gate, driven by a general time-dependent Hamiltonian, that complements the state of a qubit and then adds to it an arbitrary phase shift. It is shown that the minimum operation time of the gate is tau = (h/4E)(1+2 theta/pi), where h is Planck's constant, E is the average over time of the quantum-mechanical average energy, and theta is the phase shift modulo pi.
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"abstract": "We consider a quantum gate, driven by a general time-dependent Hamiltonian,\nthat complements the state of a qubit and then adds to it an arbitrary phase\nshift. It is shown that the minimum operation time of the gate is tau =\n(h/4E)(1+2 theta/pi), where h is Planck\u0027s constant, E is the average over time\nof the quantum-mechanical average energy, and theta is the phase shift modulo\npi.",
"arxiv_id": "quant-ph/0211167",
"authors": [
"Lev B. Levitin",
"Tommaso Toffoli",
"Zachary Walton"
],
"categories": [
"quant-ph"
],
"title": "Maximum speed of quantum gate operation",
"url": "https://arxiv.org/abs/quant-ph/0211167"
},
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