Journal ArticleDOI
Quantum Effects in Silicon Carbide Hold Promise for Novel Integrated Devices and Sensors
TLDR
In this paper, the role of paramagnetic defects in silicon carbide (SiC) nanostructures to achieve optical and spin quantum coherence control is discussed, and SiC nano-structures exhibiting optical emission due to quantum confinement associated with size reduction and bandgap engineering are reviewed.Abstract:
Silicon carbide (SiC) offers a unique opportunity to realize advanced quantum-based devices and sensors. The role of paramagnetic defects in this material to achieve optical and spin quantum coherence control are discussed, and SiC nanostructures exhibiting optical emission due to quantum confinement associated with size reduction and bandgap engineering are reviewed. The combination of nanostructures and in-built paramagnetic defects in SiC could pave the way for future single-particle and single-defect quantum devices and related biomedical sensors. Relevant classical devices in SiC (photonic crystals, nanocantilevers, microdisks) that could be integrated with intrinsic defects to achieve further functionalities in these systems are also reviewed, and an outlook is provided on future sensors that could arise from the integration of paramagnetic defects in SiC nanostructures and devices.read more
Citations
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Quantum computing with defects
TL;DR: This work presents a list of physical criteria that deep center defects and their hosts should meet and explains how these requirements can be used in conjunction with electronic structure theory to intelligently sort through candidate defect systems.
Journal ArticleDOI
A review on single photon sources in silicon carbide.
TL;DR: Key findings in single-photon generation from deep level defects in silicon carbide (SiC) are summarized and the significance of these individually addressable centers for emerging quantum applications is highlighted.
Journal ArticleDOI
Material platforms for integrated quantum photonics
TL;DR: The pros and cons of several platforms for realizing various elementary devices are discussed, the current degrees of integration achieved in each platform are compared, and several composite platform approaches are reviewed.
Posted Content
Material platforms for integrated quantum photonics
TL;DR: In this paper, the pros and cons of several platforms for realizing various elementary devices, compare the current degrees of integration achieved in each platform and review several composite platform approaches, and discuss the current state of the art.
References
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Journal ArticleDOI
Coherent manipulation of coupled electron spins in semiconductor quantum dots.
Jason R. Petta,Jason R. Petta,Jason R. Petta,A. C. Johnson,A. C. Johnson,A. C. Johnson,Jacob M. Taylor,Jacob M. Taylor,Jacob M. Taylor,Edward A. Laird,Edward A. Laird,Edward A. Laird,Amir Yacoby,Amir Yacoby,Amir Yacoby,Mikhail D. Lukin,Mikhail D. Lukin,Mikhail D. Lukin,Charles Marcus,Charles Marcus,Charles Marcus,Micah Hanson,Micah Hanson,Micah Hanson,Arthur C. Gossard,Arthur C. Gossard,Arthur C. Gossard +26 more
TL;DR: It is demonstrated coherent control of a quantum two-level system based on two-electron spin states in a double quantum dot, allowing state preparation, coherent manipulation, and projective readout based on rapid electrical control of the exchange interaction.
Journal ArticleDOI
The properties and applications of nanodiamonds
TL;DR: The rational control of the mechanical, chemical, electronic and optical properties of nanodiamonds through surface doping, interior doping and the introduction of functional groups are discussed.
Journal Article
Optical microcavities : Photonic technologies
TL;DR: Optical microcavities confine light to small volumes by resonant recirculation as discussed by the authors, and are indispensable for a wide range of applications and studies, such as long-distance transmission of data over optical fibres; they also ensure narrow spot-size laser read/write beams in CD and DVD players.
Journal ArticleDOI
Nanoscale imaging magnetometry with diamond spins under ambient conditions
Gopalakrishnan Balasubramanian,I. Y. Chan,I. Y. Chan,Roman Kolesov,Mohannad Al-Hmoud,Julia Tisler,Chang S. Shin,Changdong Kim,Aleksander K. Wójcik,Philip R. Hemmer,Anke Krueger,Tobias Hanke,Alfred Leitenstorfer,Rudolf Bratschitsch,Fedor Jelezko,Jörg Wrachtrup +15 more
TL;DR: This work shows how magneto-optical spin detection can be used to determine the location of a spin associated with a single nitrogen-vacancy centre in diamond with nanometre resolution under ambient conditions, and demonstrates the use of a single diamond spin as a scanning probe magnetometer to map nanoscale magnetic field variations.
Journal ArticleDOI
Ultralong spin coherence time in isotopically engineered diamond
Gopalakrishnan Balasubramanian,Philipp Neumann,Daniel J. Twitchen,Matthew Markham,Roman Kolesov,Norikazu Mizuochi,Norikazu Mizuochi,Junichi Isoya,Jocelyn Achard,J. Beck,Julia Tissler,Vincent Jacques,Philip R. Hemmer,Fedor Jelezko,Jörg Wrachtrup +14 more
TL;DR: Here, it is demonstrated the synthesis and application of ultrapure isotopically controlled single-crystal chemical vapour deposition (CVD) diamond with a remarkably low concentration of paramagnetic impurities, and single electron spins show the longest room-temperature spin dephasing times ever observed in solid-state systems.