The Naimark dilated PT-symmetric brachistochrone
| Autor: | Günther, U., Samsonov, B. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
High Energy Physics - Theory
brachistochrone spin systems Naimark dilation FOS: Physical sciences POVM quantum computing positive operator valued measure minimal passage time Anandan-Aharonov lower bound polarized photons two-qubit system PT quantum mechanics Mathematical Physics Naimark extension strongly non-Hermitian regime Quantum Physics entangled states quantum information theory Mathematical Physics (math-ph) PT-symmetric quantum mechanics High Energy Physics - Theory (hep-th) quantum brachistochrone wormhole exceptional point ultra-fast evolution qubits entangled state Quantum Physics (quant-ph) |
| Zdroj: | Physical Review Letters 101(2008), 230404 QTRF5-Quantum Theory: Reconsideration of Foundations, 5, 14.-19.06.2009, Vaxjo, Sweden |
| Popis: | The quantum mechanical brachistochrone system with PT-symmetric Hamiltonian is Naimark dilated and reinterpreted as subsystem of a Hermitian system in a higher-dimensional Hilbert space. This opens a way to a direct experimental implementation of the recently hypothesized PT-symmetric ultra-fast brachistochrone regime of [C. M. Bender et al, Phys. Rev. Lett. {\bf 98}, 040403 (2007)] in an entangled two-spin system. Comment: 4 pages |
| Databáze: | OpenAIRE |
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