Topologically decoherence-protected qubits with trapped ions

Autor: Benoît Douçot, Samuel Guibal, Luca Guidoni, Pérola Milman, Wilfried Maineult, Lev Ioffe, Thomas Coudreau
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
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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