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| related topics |
| {time, systems, information} |
| {state, states, entangled} |
| {time, decoherence, evolution} |
| {energy, gaussian, time} |
| {theory, mechanics, state} |
| {observables, space, algebra} |
| {cavity, atom, atoms} |
| {equation, function, exp} |
| {particle, mechanics, theory} |
| {spin, pulse, spins} |
| {measurement, state, measurements} |
| {field, particle, equation} |
| {level, atom, field} |
| {temperature, thermal, energy} |
|
What is "system": the information-theoretic arguments
M. Dugic, J. Jeknic-Dugic
abstract: The problem of "what is 'system'?" is in the very foundations of modern
quantum mechanics. Here, we point out the interest in this topic in the
information-theoretic context. E.g., we point out the possibility to manipulate
a pair of mutually non-interacting, non-entangled systems to employ
entanglement of the newly defined '(sub)systems' consisting the one and the
same composite system. Given the different divisions of a composite system into
"subsystems", the Hamiltonian of the system may perform in general
non-equivalent quantum computations. Redefinition of "subsystems" of a
composite system may be regarded as a method for avoiding decoherence in the
quantum hardware. In principle, all the notions refer to a composite system as
simple as the hydrogen atom.
- oai_identifier:
- oai:arXiv.org:quant-ph/0611250
- categories:
- quant-ph
- comments:
- 13 pages, no figures
- doi:
- 10.1007/s10773-007-9504-1
- arxiv_id:
- quant-ph/0611250
- created:
- 2006-11-24
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