Topologically decoherence-protected qubits with trapped ions
| Autor: | Benoît Douçot, Samuel Guibal, Luca Guidoni, Pérola Milman, Wilfried Maineult, Lev Ioffe, Thomas Coudreau |
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| Přispěvatelé: | Laboratoire Matériaux et Phénomènes Quantiques (MPQ (UMR_7162)), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Théorique et Hautes Energies (LPTHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Center for Materials Theory [Piscataway], Department of Physics and Astronomy [Piscataway], Rutgers, The State University of New Jersey [New Brunswick] (RU), Rutgers University System (Rutgers)-Rutgers University System (Rutgers)-Rutgers, The State University of New Jersey [New Brunswick] (RU), Rutgers University System (Rutgers)-Rutgers University System (Rutgers) |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Quantum decoherence
FOS: Physical sciences General Physics and Astronomy 02 engineering and technology Quantum entanglement 01 natural sciences trapped ions 010305 fluids & plasmas Ion k-nearest neighbors algorithm topological symbols.namesake [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] Quantum mechanics 0103 physical sciences Covariant Hamiltonian field theory Square array 010306 general physics decoherence Quantum Quantum computer Physics Quantum Physics 021001 nanoscience & nanotechnology protection Condensed Matter - Other Condensed Matter Quantum electrodynamics Qubit [PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other] Homogeneous space symbols Surface trap qubits 0210 nano-technology Quantum Physics (quant-ph) Hamiltonian (quantum mechanics) Other Condensed Matter (cond-mat.other) |
| Zdroj: | Physical Review Letters Physical Review Letters, 2007, 99 (2), pp.020503. ⟨10.1103/PhysRevLett.99.020503⟩ Physical Review Letters, American Physical Society, 2007, 99 (2), pp.020503. ⟨10.1103/PhysRevLett.99.020503⟩ |
| ISSN: | 0031-9007 1079-7114 |
| DOI: | 10.1103/PhysRevLett.99.020503⟩ |
| Popis: | We show that trapped ions can be used to simulate a highly symmetrical Hamiltonian with eingenstates naturally protected against local sources of decoherence. This Hamiltonian involves long range coupling between particles and provides a more efficient protection than nearest neighbor models discussed in previous works. Our results open the perspective of experimentally realizing in controlled atomic systems, complex entangled states with decoherence times up to nine orders of magnitude longer than isolated quantum systems. Comment: 4 pages |
| Databáze: | OpenAIRE |
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