Immunizing quantum information against decoherence via decoherence-free environments
We construct decoherence-free environments (DFEs) within the Hamiltonian formalism and derive an exact equation of motion for a quantum subsystem interacting with a DFE. We discuss the feasibility of DFEs as a means to protect the quantum information in subsystem degrees of freedom. By studying a nu...
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| Published in | Journal of physics. A, Mathematical and theoretical Vol. 44; no. 13; pp. 135301 - 15 |
|---|---|
| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Bristol
IOP Publishing
01.04.2011
IOP |
| Subjects | |
| Online Access | Get full text |
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| Abstract | We construct decoherence-free environments (DFEs) within the Hamiltonian formalism and derive an exact equation of motion for a quantum subsystem interacting with a DFE. We discuss the feasibility of DFEs as a means to protect the quantum information in subsystem degrees of freedom. By studying a number of examples we show how to avoid entanglement-induced decoherence as well as decoherence induced by incoherence dynamics in a quantum subsystem coupled to a DFE. |
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| AbstractList | We construct decoherence-free environments (DFEs) within the Hamiltonian formalism and derive an exact equation of motion for a quantum subsystem interacting with a DFE. We discuss the feasibility of DFEs as a means to protect the quantum information in subsystem degrees of freedom. By studying a number of examples we show how to avoid entanglement-induced decoherence as well as decoherence induced by incoherence dynamics in a quantum subsystem coupled to a DFE. |
| Author | Çetinbaş, Murat Leach, Gary W |
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| Keywords | Degrees of freedom Quantum entanglement Dynamics Hamiltonians Quantum decoherence Quantum information Equations of motion |
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| SubjectTerms | Degrees of freedom Dynamic tests Equations of motion Exact sciences and technology Feasibility Formalism Incoherence Joining Mathematical analysis Physics |
| Title | Immunizing quantum information against decoherence via decoherence-free environments |
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