Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Itsik Cohen"'
Publikováno v:
New Journal of Physics, Vol 17, Iss 5, p 053032 (2015)
We propose a set of techniques that enable universal quantum computing to be carried out using dressed states. This applies in particular to the effort of realizing quantum computation in trapped ions using long-wavelength radiation, where coupling e
Externí odkaz:
https://doaj.org/article/447ac760b3064511a58a93fcc5159681
Autor:
Ohr Lahad, Omri Davidson, Eilon Poem, Shai Kiriati, Ofer Firstenberg, Ran Finkelstein, Itsik Cohen
Publikováno v:
Finkelstein, R, Lahad, O, Cohen, I, Davidson, O, Kiriati, S, Poem, E & Firstenberg, O 2021, ' Continuous Protection of a Collective State from Inhomogeneous Dephasing ', Physical Review X, vol. 11, no. 1, 011008 . https://doi.org/10.1103/PhysRevX.11.011008
Physical Review X, Vol 11, Iss 1, p 011008 (2021)
Physical Review X
Physical Review X, Vol 11, Iss 1, p 011008 (2021)
Physical Review X
We introduce and demonstrate a scheme for eliminating the inhomogeneous dephasing of a collective quantum state. The scheme employs off-resonant fields that continuously dress the collective state with an auxiliary sensor state, which has an enhanced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05800c73d0d93ca239cd9e1e969f4b25
https://pure.au.dk/portal/da/publications/continuous-protection-of-a-collective-state-from-inhomogeneous-dephasing(38f607d1-a118-4891-91aa-58308a236cc1).html
https://pure.au.dk/portal/da/publications/continuous-protection-of-a-collective-state-from-inhomogeneous-dephasing(38f607d1-a118-4891-91aa-58308a236cc1).html
The coherence times achieved with continuous dynamical decoupling techniques are often limited by fluctuations in the driving amplitude. In this work, we use time-dependent phase-modulated continuous driving to increase the robustness against such fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::943862996f422134dc01d0862de7108e
http://arxiv.org/abs/1704.07582
http://arxiv.org/abs/1704.07582
Publikováno v:
Physical Review A. 95
Dynamical decoupling techniques are the method of choice for increasing gate fidelities. While these methods have produced very impressive results in terms of decreasing local noise and increasing the fidelities of single qubit operations, dealing wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b67584b8b238939385d03978fb36c552
https://doi.org/10.1103/physreva.95.032314
https://doi.org/10.1103/physreva.95.032314
Autor:
Amit Rotem, Roee Ozeri, Itsik Cohen, Nitzan Akerman, Alex Retzker, Yotam Shapira, Ravid Shaniv, Tom Manovitz
Engineering entanglement between quantum systems often involves coupling through a bosonic mediator, which should be disentangled from the systems at the operation's end. The quality of such an operation is generally limited by environmental and cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae5715d1fc5cb256f55047a527bb690e
Publikováno v:
New Journal of Physics
We present a new method of constructing a fully robust qubit in a three-level system. By the application of continuous driving fields, robustness to both external and controller noise is achieved. Specifically, magnetic noise and power fluctuations d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::263b9bd5aa4d48d70a014bf614f0548d
Autor:
Tomas Navickas, Winfried K. Hensinger, A. E. Webb, Bjoern Lekitsch, S. C. Webster, Alex Retzker, K. Lake, J. Randall, Itsik Cohen, S. Weidt
Publikováno v:
Physical review letters. 117(22)
Trapped ions are a promising tool for building a large-scale quantum computer. However, the number of required radiation fields for the realisation of quantum gates in any proposed ion-based architecture scales with the number of ions within the quan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2464462fd6ba5cc2e0f1d64ebd9faa0d
https://pubmed.ncbi.nlm.nih.gov/27925715
https://pubmed.ncbi.nlm.nih.gov/27925715
Publikováno v:
Physical Review A. 93
Amplitude noise which inflicts a random two qubit term is one of the main obstacles preventing the implementation of a high fidelity two-body gate below the fault tolerance threshold. This noise is difficult to refocus as any refocusing technique cou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13a321b9e20531b7992105f55cdba1d5
https://doi.org/10.1103/physreva.93.032340
https://doi.org/10.1103/physreva.93.032340
Autor:
J. Randall, A. E. Webb, Alex Retzker, Itsik Cohen, Bjoern Lekitsch, Winfried K. Hensinger, Tomas Navickas, Sebastian Weidt, S. C. Webster, K. Lake
Publikováno v:
Scopus-Elsevier
The use of long-wavelength radiation for gate operations is a promising approach for trapped-ion quantum computation. We demonstrate the key principle of this approach by generating a maximally entangled two-qubit Bell-state with fidelity of 0.985.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f15801ac1cf88385fc71772103ca8ef8
https://doi.org/10.1364/cleo_qels.2016.fm3c.4
https://doi.org/10.1364/cleo_qels.2016.fm3c.4
Resilience to noise and to decoherence processes is an important ingredient for the implementation of quantum information processing, and quantum technologies. To this end, techniques such as pulsed and continuous dynamical decoupling have been propo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d1276885ec84399fd183a57dd012c41