Resonant tunneling diodes (RTDs) have come fullcircle in the past 10 years after their demonstration in the early 1990s as the fastest roomtemperature semiconductor oscillator, displaying experimental results up to 712 GHz and fmax values exceeding 1.0 THz [1]. Now the RTD is once again the preeminent electronic oscillator above 1.0 THz and is being implemented as a coherent source [2] and a selfoscillating mixer [3], amongst other applications. This paper concerns RTD electroluminescence – an effect that has been studied very little in the past 30+ years of RTD development, and not at room temperature. We present experiments andmore »
This content will become publicly available on December 1, 2022
Nanophotoluminescence of natural anyon molecules and topological quantum computation
Abstract The proposal of faulttolerant quantum computations, which promise to dramatically improve the operation of quantum computers and to accelerate the development of the compact hardware for them, is based on topological quantum field theories, which rely on the existence in Nature of physical systems described by a Lagrangian containing a nonAbelian (NA) topological term. These are solidstate systems having twodimensional electrons, which are coupled to magneticfluxquanta vortexes, forming complex particles, known as anyons. Topological quantum computing (TQC) operations thus represent a physical realization of the mathematical operations involving NA representations of a braid group B n , generated by a set of n localized anyons, which can be braided and fused using a “tweezer” and controlled by a detector. For most of the potential TQC material systems known so far, which are 2Delectron–gas semiconductor structure at high magnetic field and a variety of hybrid superconductor/topologicalmaterial heterostructures, the realization of anyon localization versus tweezing and detecting meets serious obstacles, chief among which are the necessity of using current control, i.e., mobile particles, of the TQC operations and high density electron puddles (containing thousands of electrons) to generate a single vortex. Here we demonstrate a novel system, in which these obstacles more »
 Award ID(s):
 1904610
 Publication Date:
 NSFPAR ID:
 10347300
 Journal Name:
 Scientific Reports
 Volume:
 11
 Issue:
 1
 ISSN:
 20452322
 Sponsoring Org:
 National Science Foundation
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