Quantum Sensing and Symmetry

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics".

Deadline for manuscript submissions: closed (31 October 2020) | Viewed by 3639

Special Issue Editor


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Guest Editor
Department of Physical Chemistry, University of the Basque Country UPV/EHU, Apartado 644, 48080 Bilbao, Spain
Interests: quantum information and computation; quantum technologie; quantum simulation of condensed matter and high-energy physics

Special Issue Information

Dear Colleagues,

Nanoscale nuclear magnetic resonance is a flourishing area with both fundamental and applied implications. Among them, we have the possibility of exploring central interactions that appear, e.g., between the spin components of electrons and nuclei, and the enhancement in the resolution of the images obtained by magnetic resonant imaging. The underlying physical mechanism that habilitates all these applications is the interaction between a quantum sensor, typically a controllable pseudo-electron-spin, and specific targets. This interaction can be modulated by judiciously applying tailored radiation patterns in a procedure known as quantum sensing or quantum detection.

In this context, the concept of symmetry emerges naturally in different aspects of the theory. For instance, symmetry plays a pivotal role in the achievement of specific sensor-target interactions. This is because the delivered microwave fields, continuous or stroboscopic, have to imprint a well-defined rotation frequency on the electron-spin sensor matching that of the target signal. In addition, symmetric constructions of microwave radiation patterns certify robustness against environmental and control errors. The latter have been widely studied in the frame of dynamical decoupling techniques. Finally, the hyperfine vectors that define each sample are intrinsically symmetric and this is reflected in the resonance spectrum of the samples.

In this Special Issue, we want to gather a series of articles on different aspects of symmetry in quantum sensing techniques.

Dr. Jorge Casanova
Guest Editor

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Keywords

  • Quantum sensing
  • Diamond hyperpolarization
  • Dynamical decoupling techniques
  • Nitrogen vacancy centers
  • Silicon carbide quantum sensor

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Published Papers (1 paper)

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Research

10 pages, 959 KiB  
Article
Enhancing the Robustness of Dynamical Decoupling Sequences with Correlated Random Phases
by Zhenyu Wang, Jorge Casanova and Martin B. Plenio
Symmetry 2020, 12(5), 730; https://doi.org/10.3390/sym12050730 - 5 May 2020
Cited by 8 | Viewed by 3332
Abstract
We show that the addition of correlated phases to the recently developed method of randomized dynamical decoupling pulse sequences can improve its performance in quantum sensing. In particular, by correlating the relative phases of basic pulse units in dynamical decoupling sequences, we are [...] Read more.
We show that the addition of correlated phases to the recently developed method of randomized dynamical decoupling pulse sequences can improve its performance in quantum sensing. In particular, by correlating the relative phases of basic pulse units in dynamical decoupling sequences, we are able to improve the suppression of the signal distortion due to π pulse imperfections and spurious responses due to finite-width π pulses. This enhances the selectivity of quantum sensors such as those based on NV centers in diamond. Full article
(This article belongs to the Special Issue Quantum Sensing and Symmetry)
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