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Technologies
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Quantum Technologies
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Quantum Technologies

A special issue of Technologies (ISSN 2227-7080). This special issue belongs to the section "Quantum Technologies".

Deadline for manuscript submissions: closed (30 June 2016) | Viewed by 18133

Special Issue Editor

Prof. Dr. Stephan Reitzenstein

E-Mail Website
Guest Editor
Institut für Festkörperphysik, Technische Universität Berlin, Hardenbergstr. 36, D-10623 Berlin, Germany
Interests: quantum optical technologies for quantum communication; integrated quantum optics; development of deterministic micro- and nanofabrication technologies; optical properties and fundamental light-matter interaction of semiconductor micro- and nanostructures; quantum metrology using quantum light sources; nonlinear and coherent dynamics in coupled microsystems; development of practical non-classical light sources; development and study of quantum dot microlasers; nanoelectronics

Special Issue Information

Dear Colleagues,

Enormous advances in nanofabrication technologies and experimental methods have paved the way for a scientific revolution, the “second quantum revolution”, which nowadays allows for a controlled manipulation of physical systems at the quantum level of light and matter. This revolution is enabled by modern quantum technologies, which have become a rapidly increasing field in physics and engineering. Research on quantum technologies is highly interdisciplinary and focuses the attention of leading experts in, for instance, nanotechnology, semiconductor science, quantum optics, quantum information technology with the overarching goal of studying and use quantum effects in “real-world” applications.

The high interest in quantum technologies is reflected in numerous major national and international research programs that were launched to explore and utilize the exiting opportunities of quantum systems for future applications such as quantum sensing, quantum metrology and quantum communication. The related research has led to many exciting results, which highlight the manifold prospects arising from the emerging field of quantum technologies.

The main aim of this Special Issue is to cover a wide range of present activities and advances in quantum technology. The topics include, but are not restricted to solid state sources generating quantum states of light, quantum sensors with ultimate sensitivity, quantum memories, quantum wavelength/bandwidth converters, and hybrid quantum systems.

Prof. Dr. Stephan Reitzenstein
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Technologies is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Quantum light source
  • Quantum memories
  • Quantum sensors
  • Quantum interfaces
  • Integrated quantum optics
  • Superconducting quantum circuits
  • Hybrid quantum systems
  • Quantum Communication
  • Quantum Teleportation

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Published Papers (3 papers)

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Research

7 pages, 1128 KiB  
Article
Interfering Heralded Single Photons from Two Separate Silicon Nanowires Pumped at Different Wavelengths
by Xiang Zhang, Runyu Jiang, Bryn A. Bell, Duk-Yong Choi, Change Joon Chae and Chunle Xiong
Technologies 2016, 4(3), 25; https://doi.org/10.3390/technologies4030025 - 24 Aug 2016
Cited by 16 | Viewed by 6122
Abstract
Practical quantum photonic applications require on-demand single photon sources. As one possible solution, active temporal and wavelength multiplexing has been proposed to build an on-demand single photon source. In this scheme, heralded single photons are generated from different pump wavelengths in many temporal [...] Read more.
Practical quantum photonic applications require on-demand single photon sources. As one possible solution, active temporal and wavelength multiplexing has been proposed to build an on-demand single photon source. In this scheme, heralded single photons are generated from different pump wavelengths in many temporal modes. However, the indistinguishability of these heralded single photons has not yet been experimentally confirmed. In this work, we achieve 88% ± 8% Hong–Ou–Mandel quantum interference visibility from heralded single photons generated from two separate silicon nanowires pumped at different wavelengths. This demonstrates that active temporal and wavelength multiplexing could generate indistinguishable heralded single photons. Full article
(This article belongs to the Special Issue Quantum Technologies)
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7 pages, 3159 KiB  
Article
Electrically Injected Twin Photon Emitting Lasers at Room Temperature
by Claire Autebert, Giorgio Maltese, Yacine Halioua, Fabien Boitier, Aristide Lemaître, Maria Amanti, Carlo Sirtori and Sara Ducci
Technologies 2016, 4(3), 24; https://doi.org/10.3390/technologies4030024 - 18 Aug 2016
Cited by 5 | Viewed by 5473
Abstract
On-chip generation, manipulation and detection of nonclassical states of light are some of the major issues for quantum information technologies. In this context, the maturity and versatility of semiconductor platforms are important assets towards the realization of ultra-compact devices. In this paper we [...] Read more.
On-chip generation, manipulation and detection of nonclassical states of light are some of the major issues for quantum information technologies. In this context, the maturity and versatility of semiconductor platforms are important assets towards the realization of ultra-compact devices. In this paper we present our work on the design and study of an electrically injected AlGaAs photon pair source working at room temperature. The device is characterized through its performances as a function of temperature and injected current. Finally we discuss the impact of the device’s properties on the generated quantum state. These results are very promising for the demonstration of electrically injected entangled photon sources at room temperature and let us envision the use of III-V semiconductors for a widespread diffusion of quantum communication technologies. Full article
(This article belongs to the Special Issue Quantum Technologies)
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Graphical abstract

6 pages, 2146 KiB  
Communication
Latest Advances in the Generation of Single Photons in Silicon Carbide
by Albert Boretti and Lorenzo Rosa
Technologies 2016, 4(2), 16; https://doi.org/10.3390/technologies4020016 - 2 Jun 2016
Cited by 8 | Viewed by 5592
Abstract
The major barrier for optical quantum information technologies is the absence of reliable single photons sources providing non-classical light states on demand which can be easily and reliably integrated with standard processing protocols for quantum device fabrication. New methods of generation at room [...] Read more.
The major barrier for optical quantum information technologies is the absence of reliable single photons sources providing non-classical light states on demand which can be easily and reliably integrated with standard processing protocols for quantum device fabrication. New methods of generation at room temperature of single photons are therefore needed. Heralded single photon sources are presently being sought based on different methods built on different materials. Silicon Carbide (SiC) has the potentials to serve as the preferred material for quantum applications. Here, we review the latest advances in single photon generation at room temperatures based on SiC. Full article
(This article belongs to the Special Issue Quantum Technologies)
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