Most recent
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quantalk.org/09-07-001
Distributed Quantum Computation Architecture Using Semiconductor Nanophotonics
In a large-scale quantum computer, the cost of communications will dominate the performance and resource requirements, place many severe demands on the technology, and constrain the architecture. Unfo...  Discussion started by: Simon Benjamin
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Rodney Van Meter, Thaddeus D. Ladd, Austin G. Fowler, Yoshihisa Yamamoto |
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11 last post 10:57 14/10/09 recent posts |
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We report a measurement of the spin-echo decay of a single electron spin confined in a semiconductor quantum dot. When we tip the spin in the transverse plane via a magnetic field burst, it dephases i... Discussion started by: John Morton
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F.H.L. Koppens, K.C. Nowack, L.M.K. Vandersypen |
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3 last post 11:49 06/04/08 recent posts |
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We prove an area law for the entanglement entropy in gapped one dimensional quantum systems. The bound on the entropy grows surprisingly rapidly with the correlation length; we discuss this in terms o... Discussion started by: Tobias Osborne
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Hastings M. B. |
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2 last post 18:01 06/03/08 recent posts |
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The manifold of coupling constants parametrizing a quantum Hamiltonian is equipped with a natural Riemannian metric with an operational distinguishability content. We argue that the singularities of t... Discussion started by: (anonymous)
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Paolo Zanardi, Paolo Giorda, Marco Cozzini |
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1 last post 13:58 18/01/08 recent posts |
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Understanding the electronic structure of semiconductor nanostructures is not complete without a detailed description of their corresponding spin-related properties. Here we explore the response of th... Discussion started by: Simon Benjamin
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T. P. Mayer Alegre, F. G. G. Hernandez, A. L. C. Pereira, G. Medeiros-Ribeiro |
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1 last post 00:30 30/12/07 recent posts |
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Quantum bits (qubits) are the basic building blocks of any quantum computer. Superconducting qubits have been created with a top-down approach that integrates superconducting devices into macroscopic ... Discussion started by: John Morton
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Sylvain Bertaina, Serge Gambarelli, A. Tkachuk, B. Kurkin...
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posts:
1 last post 23:52 29/12/07 recent posts |
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quantalk.org/07-12-001
Will spin-relaxation times in molecular magnets permit quantum information processing?
Using X-band pulsed electron spin resonance, we report the intrinsic spin-lattice (T1) and phase coherence (T2) relaxation times in molecular nanomagnets for the first time. In Cr7M heterometallic whe...  Discussion started by: Simon Benjamin
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Arzhang Ardavan, Olivier Rival, John J. L. Morton, Stephen J. Blundell...
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posts:
1 last post 00:04 30/12/07 recent posts |