High-rate entanglement source via two-photon emission from semiconductor quantum wells
TLDR
In this article, the authors proposed a compact high-intensity room-temperature source of entangled photons based on the efficient second-order process of two-photon spontaneous emission from electrically pumped semiconductor quantum wells in a photonic microcavity.Abstract:
We propose a compact high-intensity room-temperature source of entangled photons based on the efficient second-order process of two-photon spontaneous emission from electrically pumped semiconductor quantum wells in a photonic microcavity. Two-photon emission rate in room-temperature semiconductor devices is determined solely by the carrier density, regardless of the residual one-photon emission. The microcavity selects two-photon emission for a specific signal and idler wavelengths and at a preferred direction without modifying the overall rate. Pair-generation rate in GaAs/AlGaAs quantum well structure is estimated using a 14-band model to be 3 orders of magnitude higher than for traditional broadband parametric down-conversion sources.read more
Citations
More filters
Journal ArticleDOI
Observation of two-photon emission from semiconductors
TL;DR: In this paper, it was shown that when an electron relaxes from an excited state, it generates not one but two photons, which has been seen in atomic systems, but never in semiconductors, until now.
Journal ArticleDOI
Applications of two-photon processes in semiconductor photonic devices: invited review
TL;DR: In this review, the lowest order of nonlinear interactions-–the two-photon processes in semiconductors—are discussed, and their applications to a variety of novel classical and quantum configurations are reviewed.
Journal ArticleDOI
Cavity quantum electrodynamics in application to plasmonics and metamaterials
Pavel Ginzburg,Pavel Ginzburg +1 more
TL;DR: In this article, the authors introduce key methods and techniques while aiming to obtain comprehensive quantum mechanical description of spontaneous, stimulated and higher order emission and interaction processes tailored by nanostructured material environment.
Journal ArticleDOI
Tailoring and enhancing spontaneous two-photon emission using resonant plasmonic nanostructures
TL;DR: In this article, the authors developed a theory of spontaneous emission for a general electromagnetic environment including inhomogeneous dispersive and absorptive media and evaluated the two-photon Purcell enhancement in the vicinity of metallic nanoparticles and demonstrated that the surface-plasmon resonances supported by these particles can increase the emission rate by more than two orders of magnitude.
Journal ArticleDOI
Bragg reflection waveguides as integrated sources of entangled photon pairs
TL;DR: In this article, spontaneous parametric downconversion in Bragg reflection waveguides is used to generate entangled photon pair generation with a 2 mm-long structure, and the pair production rate is predicted to reach 4×108 pairs/s/nm/mW.
References
More filters
Journal ArticleDOI
Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?
TL;DR: Consideration of the problem of making predictions concerning a system on the basis of measurements made on another system that had previously interacted with it leads to the result that one is led to conclude that the description of reality as given by a wave function is not complete.
Journal ArticleDOI
Proposed Experiment to Test Local Hidden Variable Theories.
TL;DR: In this paper, a theorem of Bell, proving that certain predictions of quantum mechanics are inconsistent with the entire family of local hidden-variable theories, is generalized so as to apply to realizable experiments.
Journal ArticleDOI
Communication via One- and Two-Particle Operators on Einstein-Podolsky-Rosen States
TL;DR: The set of states accessible from an initial EPR state by one-particle operations are characterized and it is shown that in a sense they allow two bits to be encoded reliably in one spin-1/2 particle.
Journal ArticleDOI
New high-intensity source of polarization-entangled photon pairs.
Paul G. Kwiat,Klaus Mattle,Harald Weinfurter,Anton Zeilinger,Alexander V. Sergienko,Yanhua Shih +5 more
TL;DR: Type-II noncollinear phase matching in parametric down conversion produces true entanglement: No part of the wave function must be discarded, in contrast to previous schemes.
Journal ArticleDOI
Experimental Tests of Realistic Local Theories via Bell's Theorem
TL;DR: In this article, the linear polarization correlation of the photons emitted in a radiative atomic cascade of calcium was measured, in excellent agreement with the quantum mechanical predictions, strongly violate the generalized Bell's inequalities, and rule out the whole class of realistic local theories.