quantum technologies-2020


Quantum technologies are often described as the ‘second quantum revolution’ or ‘quantum 2.0’. These are generally regarded as a class of device that actively create, manipulate and read out quantum states of matter, often using the quantum effects of superposition and entanglement.

Quantum Defects in Diamond: Identifying Nitrogen Isotopes of Nitrogen-Vacancy Centers
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This project aims to identify the isotopes present within individual nitrogen-vacancy (NV) centers in diamond. This is done to determine whether they are naturally grown 14N NV centers, or if they are a product of 15N ion implantation. The results are then intended to be

Atomic Defects in 2D Semiconductors-From Chemical Doping to Quantum Technologies
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Chemical doping is a vital technology to tune the conductivity and optical properties of semiconductors. While dopants in bulk materials usually create shallow states that can contribute mobile charge carriers, the electronic states of dopants in 2D materials exhibit

Black Holes and Semiclassical Quantum Gravity
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These are lecture notes for a course on black holes and semiclassical quantum gravity, given at the LACES 2019 graduate school. It is assumed knowledge of General Relativity (including basic notions of differential geometry and black holes), Quantum Field Theory

Perturbative Quantum Field Theory with Homotopy Algebras
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The BV-formalism associates to any Lagrangian field theory an L∞-algebra. Any L∞- algebra comes with minimal models, and the minimal models of L∞-algebras originating from Lagrangian field theories capture the scattering amplitudes of these. The minimal

Quantum Package Documentation
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From the user point of view, the Quantum Package proposes a stand-alone path to use optimized selected configuration interaction SCI (Selected-CI) based on the CIPSI (Configuration Interaction using a Perturbative Selection) algorithm that can efficiently reach

Proximity-induced superconducting gap in the quantum spin Hall edge state of monolayer WTe 2
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The quantum spin Hall (QSH) state was recently demonstrated in monolayers of the transition metal dichalcogenide 1T-WTe2 and is characterized by a band gap in the two- dimensional (2D) interior and helical onedimensional (1D) edge states [1 3]. Inducing

MEASUREMENTS OF POLARITON-POLARITON INTERACTION STRENGTH AND QUANTUM DEPLETION IN OPTICALLY TRAPPED EXCITON-POLARITON
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Condensates of exciton polaritons in semiconductor microcavities typically coexist and interact with an incoherent excitonic reservoir injected by an optical pump. The reservoir serves both as the gain medium and as a repulsive potential for exciton polaritons, hence

Novel Trotter formulas for digital quantum simulation
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Quantum simulation promises to address many challenges in fields ranging from quantum chemistry to material science, and high-energy physics, and could be implemented in noisy intermediatescale quantum devices. A challenge in building good digital quantum

Quantum Electrodynamics
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Quantum electrodynamics (QED), quantum field theory of the interactions of charged particles with the electromagnetic field. It describes mathematically not only all interactions of light with matter but also those of charged particles with one another. QED is a relativistic

Optical Quantum Memory and its Applications in Quantum Communication Systems
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Optical quantum memory is a device that can store the quantum state of photons and retrieve it on demand and with high fidelity. It is emerging as an essential device to enhance security, speed, scalability, and performance of many quantum systems used in

DETAILED DRIFT DIFFUSION MODEL FOR THE ANALYSIS AND DESIGN OF QUANTUM DOT SOLAR CELLS
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One attractive concept for the realization of third generation solar cells is the Intermediate Band Solar Cell (IBSC) theoretically proposed in 1997 by Luque and Martì . The basic structure can be regarded as a pin junction where the intrinsic semiconductor hosts an

Graphene quantum dots/ionic liquid-Modified Carbon Paste Electrode-Based Sensor for Simultaneous voltammetric determination of norepinephrine and
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In this work, a highly effective voltammetric sensor fabricated for simultaneous analysis of norepinephrine and acetylcholine. The sensor was fabricated by the modification of carbon paste electrode with graphene quantum dots/ionic liquid (GQDs/IL/CPE). The

A quantum solution for efficient use of symmetries in the simulation of many-body systems
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A many-body Hamiltonian can be block-diagonalized by expressing it in terms of symmetry- adapted basis states. Finding the group orbit representatives of these basis states and their corresponding symmetries is currently a memory/computational bottleneck on classical

Quantum Humanities: A First Use Case for Quantum -ML in Media
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Quantum Humanities, the vison of combining quantum computing and digital humanities, is a promising new research field that aims at supporting digital humanities by using the advantages provided by the upcoming technology of the quantum computer for addressing The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general The transition from Newtonian mechanics to quantum mechanics in the early years of the twentieth century was a major step in the progress of our understanding of the world. This transition involved more than just a change of equations it led to a deep change in our

Still about quantum measurement theory in ZEO
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The relation between zero energy ontology (ZEO) based quantum measurement theory and adelic vision could be much clearer. The following considerations suggest a more precise picture about cognitive representations and formulation of quantum measurement theory for

Quantum Computing: Fusion of Physics and Computers
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CSI Communications| February 2015| 29 not know the cosmology behind all this; yet what should fascinate us is the processing power of these QCs. 4. Tunneling: The idea of quantum tunneling, ie a manifest of Heisenbergs uncertainty principle which ports the data

Quantum Cryptography for Nuclear Command and Control
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The nuclear inventory of Russia and the USA currently comprises 1 685 warheads in a large network of vehicles; and the interconnected network is managed by a command and control communication system. This command and control communication system (C3) must

Quantum Antenna Theory for Secure Wireless Communications
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We provide a very broad outline for a new research area within the domain of Future Antennas, namely quantum antenna (q-antenna) theory and their applications to building secure digital communication lines. The proposed quantum antenna theory purports to


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