Enhanced solid-state multispin metrology using dynamical decoupling
نویسندگان
چکیده
L. M. Pham,1 N. Bar-Gill,2,3 C. Belthangady,2 D. Le Sage,2 P. Cappellaro,4 M. D. Lukin,3 A. Yacoby,3 and R. L. Walsworth2,3 1School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA 2Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA 3Physics Department, Harvard University, Cambridge, Massachusetts 02138, USA 4Nuclear Science and Engineering Department, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA (Received 26 January 2012; revised manuscript received 23 May 2012; published 24 July 2012)
منابع مشابه
Optimal pulse spacing for dynamical decoupling in the presence of a purely dephasing spin bath
Maintaining quantum coherence is a crucial requirement for quantum computation; hence protecting quantum systems against their irreversible corruption due to environmental noise is an important open problem. Dynamical decoupling (DD) is an effective method for reducing decoherence with a low control overhead. It also plays an important role in quantum metrology, where, for instance, it is emplo...
متن کاملDecay of spin coherences in one-dimensional spin systems
Strategies to protect multi-qubit states against decoherence are difficult to formulate because of their complex many-body dynamics. A better knowledge of the decay dynamics would help in the construction of dynamical decoupling control schemes. Here we use solid-state nuclear magnetic resonance techniques to experimentally investigate decay of coherent multi-spin states in linear spin chains. ...
متن کاملContinuous dynamical decoupling magnetometry
Solid-state qubits hold the promise to achieve an unmatched combination of sensitivity and spatial resolution. To achieve their potential, the qubits need, however, to be shielded from the deleterious effects of the environment. While dynamical decoupling techniques can improve the coherence time, they impose a compromise between sensitivity and the frequency range of the field to be measured. ...
متن کاملSolid-state electronic spin coherence time approaching one second.
Solid-state spin systems such as nitrogen-vacancy colour centres in diamond are promising for applications of quantum information, sensing and metrology. However, a key challenge for such solid-state systems is to realize a spin coherence time that is much longer than the time for quantum spin manipulation protocols. Here we demonstrate an improvement of more than two orders of magnitude in the...
متن کاملDecoherence and Dynamical Decoupling in Solid-state Spin Qubits
Title of dissertation: DECOHERENCE AND DYNAMICAL DECOUPLING IN SOLID-STATE SPIN QUBITS Wayne Martin Witzel Doctor of Philosophy, 2007 Dissertation directed by: Professor Sankar Das Sarma Department of Physics This dissertation is a study of the decoherence of a solid-state spin qubit, either that of a localized electron spin or a donor nucleus, caused by a nuclear spin bath relevant to semicond...
متن کامل