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related topics |
{theory, mechanics, state} |
{qubit, qubits, gate} |
{algorithm, log, probability} |
{energy, state, states} |
{measurement, state, measurements} |
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{let, theorem, proof} |
{observables, space, algebra} |
{vol, operators, histories} |
{key, protocol, security} |
{time, systems, information} |
{light, field, probe} |
{states, state, optimal} |
{cos, sin, state} |
{trap, ion, state} |
{state, algorithm, problem} |
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Contact between laboratory instruments and equations of quantum mechanics
John M. Myers, F. Hadi Madjid
abstract: Ambiguity in the contact between laboratory instruments and equations of
quantum mechanics is formulated in terms of responses of the instruments to
commands transmitted to them by a Classical digital Process-control Computer
(CPC); in this way instruments are distinguished from quantum-mechanical models
(sets of equations) that specify what is desired of the instruments. Results
include: (1) a formulation of quantum mechanics adapted to computer-controlled
instruments; (2) a lower bound on the precision of unitary transforms required
for quantum searching and a lower bound on sample size needed to show that
instruments implement a desired model at that precision; (3) a lower bound on
precision of timing required of a CPC in directing instruments; (4) a
demonstration that guesswork is necessary in ratcheting up the precision of
commands.
- oai_identifier:
- oai:arXiv.org:quant-ph/0005007
- categories:
- quant-ph
- comments:
- 19 pages, prepared for SPIE AeroSense 2000
- arxiv_id:
- quant-ph/0005007
- created:
- 2000-05-01
Full article ▸
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