Zobrazeno 1 - 10
of 62
pro vyhledávání: '"U. Dorner"'
Autor:
Brian J. Smith, Animesh Datta, Lijian Zhang, Ian A. Walmsley, U. Dorner, Nicholas Thomas-Peter
Publikováno v:
Physical Review A. 102
Autor:
Lijian Zhang, Nicholas Thomas-Peter, Brian J. Smith, U. Dorner, Ian A. Walmsley, Animesh Datta
Quantum enhancements of precision in metrology can be compromised by system imperfections. These may be mitigated by appropriate optimization of the input state to render it robust, at the expense of making the state difficult to prepare. In this pap
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::433ce177f0c24b08e782e72c13e96098
https://ora.ox.ac.uk/objects/uuid:fdee374c-431e-4c07-8c7f-a5a4183a0e21
https://ora.ox.ac.uk/objects/uuid:fdee374c-431e-4c07-8c7f-a5a4183a0e21
We study a string of neutral atoms with nearest neighbor interaction in a 1D beam splitter configuration, where the longitudinal motion is controlled by a moving optical lattice potential. The dynamics of the atoms crossing the beam splitter maps to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72e5ec6d16ab73a0b12af016ad560f3a
https://doi.org/10.1103/physrevlett.91.073601
https://doi.org/10.1103/physrevlett.91.073601
We consider two-dimensional networks composed of nodes initially linked by two-qubit mixed states. In these networks we develop a global error correction scheme that can generate distance-independent entanglement from arbitrary network geometries usi
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https://ora.ox.ac.uk/objects/uuid:b9c64ae5-b5f9-40ab-bf36-db0ada8ac495
https://ora.ox.ac.uk/objects/uuid:b9c64ae5-b5f9-40ab-bf36-db0ada8ac495
We study a quantum repeater which is based on decoherence free quantum gates recently proposed by Klein et al. [Phys. Rev. A 73, 012332 (2006)]. A number of operations on the decoherence free subspace in this scheme makes use of an ancilla qubit, whi
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https://ora.ox.ac.uk/objects/uuid:c191ce16-e2a4-4c9b-bd01-48b2f5650ac2
https://ora.ox.ac.uk/objects/uuid:c191ce16-e2a4-4c9b-bd01-48b2f5650ac2
Autor:
Konrad Banaszek, M. Kacprowicz, U. Dorner, Brian J. Smith, Jeff S. Lundeen, Wojciech Wasilewski, Rafał Demkowicz-Dobrzański, Ian A. Walmsley
Publikováno v:
Scopus-Elsevier
It is widely recognized that the shot-noise, which limits the precision of standard interferometric measurements, can be overcome by employing non-classical states such as the so-called N00N state [1]. The enhanced precision comes however at the cost
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94b4477fa87a0e10f74509f51052bd6e
https://doi.org/10.1109/cleoe-eqec.2009.5192119
https://doi.org/10.1109/cleoe-eqec.2009.5192119
We show how to efficiently exploit decoherence free subspaces (DFSs), which are immune to collective noise, for realizing quantum repeaters with long lived quantum memories. Our setup consists of an assembly of simple modules and we show how to imple
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https://ora.ox.ac.uk/objects/uuid:33e180ba-2863-4939-b751-8e258a272fd0
https://ora.ox.ac.uk/objects/uuid:33e180ba-2863-4939-b751-8e258a272fd0
Publikováno v:
The European Physical Journal D. 14:377-386
In a recent experiment the progressive decoherence of a mesoscopic superposition of two coherent field states in a high-Q cavity, known as Schrodinger cat state, has been measured for the first time [Brune et al., Phys. Rev. Lett. 77, 4887 (1996)]. H
Publikováno v:
Computer Physics Communications. 132:30-43
Different methods for the numerical solution of stochastic differential equations arising in the quantum mechanics of open systems are discussed. A comparison of the stochastic Euler and Heun schemes, a stochastic variant of the fourth order Runge-Ku
Autor:
U. Dorner
I analyze a metrological strategy for improving the precision of frequency estimation via Ramsey interferometry with strings of atoms in the presence of correlated dephasing. This strategy does not employ entangled states, but rather a product state
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