Quantum-dot spin–photon entanglement via frequency downconversion to telecom wavelength

K De Greve, L Yu, PL McMahon, JS Pelc… - Nature, 2012 - nature.com
Long-distance quantum teleportation and quantum repeater technologies require
entanglement between a single matter quantum bit (qubit) and a telecommunications …

Layered architecture for quantum computing

NC Jones, R Van Meter, AG Fowler, PL McMahon… - Physical Review X, 2012 - APS
We develop a layered quantum-computer architecture, which is a systematic framework for
tackling the individual challenges of developing a quantum computer while constructing a …

Universal recovery of the energy-level degeneracy of bright excitons in InGaAs quantum dots without a structure symmetry

R Trotta, E Zallo, C Ortix, P Atkinson, JD Plumhof… - Physical review …, 2012 - APS
The lack of structural symmetry which usually characterizes semiconductor quantum dots
lifts the energetic degeneracy of the bright excitonic states and hampers severely their use …

Ultraclean emission from InAsP quantum dots in defect-free wurtzite InP nanowires

D Dalacu, K Mnaymneh, J Lapointe, X Wu, PJ Poole… - Nano …, 2012 - ACS Publications
We report on the ultraclean emission from single quantum dots embedded in pure wurtzite
nanowires. Using a two-step growth process combining selective-area and vapor–liquid …

Experimental methods of post-growth tuning of the excitonic fine structure splitting in semiconductor quantum dots

JD Plumhof, R Trotta, A Rastelli, OG Schmidt - Nanoscale research letters, 2012 - Springer
Deterministic sources of polarization entangled photon pairs on demand are considered as
important building blocks for quantum communication technology. It has been demonstrated …

Electronic and optical properties of semiconductor and graphene quantum dots

W Sheng, M Korkusinski, AD Güçlü, M Zielinski… - Frontiers of …, 2012 - Springer
Our recent work on the electronic and optical properties of semiconductor and graphene
quantum dots is reviewed. For strained self-assembled InAs quantum dots on GaAs or InP …

Cascaded single-photon emission from the Mollow triplet sidebands of a quantum dot

A Ulhaq, S Weiler, SM Ulrich, R Roßbach, M Jetter… - Nature …, 2012 - nature.com
Emission from a resonantly excited quantum emitter is a fascinating research topic within the
field of quantum optics and is a useful source for different types of quantum light fields. The …

Complete hyperentangled-Bell-state analysis for photon systems assisted by quantum-dot spins in optical microcavities

BC Ren, HR Wei, M Hua, T Li, FG Deng - Optics Express, 2012 - opg.optica.org
Bell-state analysis (BSA) is essential in quantum communication, but it is impossible to
distinguish unambiguously the four Bell states in the polarization degree of freedom (DOF) …

Generation and control of polarization-entangled photons from GaAs island quantum dots by an electric field

M Ghali, K Ohtani, Y Ohno, H Ohno - Nature communications, 2012 - nature.com
Semiconductor quantum dots are potential sources for generating polarization-entangled
photons efficiently. The main prerequisite for such generation based on biexciton–exciton …

Polarization properties of excitonic qubits in single self-assembled quantum dots

C Tonin, R Hostein, V Voliotis, R Grousson, A Lemaitre… - Physical Review B, 2012 - APS
We investigate polarization properties of neutral exciton emission in single self-assembled
InAs/GaAs quantum dots. The in-plane anisotropy of the confinement potential and strain …