Proposal for high-speed and high-fidelity electron-spin initialization in a negatively charged quantum dot coupled to a microcavity in a weak external magnetic field

Journal Article · Sun Aug 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.022301· OSTI ID:21448448

Majumdar, Arka; Ziliang, Lin; Faraon, Andrei; Vuckovic, Jelena ^[1]

---

1. E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305 (United States)

We describe a proposal for fast electron-spin initialization in a negatively charged quantum dot coupled to a microcavity without the need for a strong magnetic field. We employ two-photon excitation to access trion states that are spin forbidden by one-photon excitation. Our simulation shows a maximum initialization speed of 1.3 GHz and maximum fidelity of 99.7% with realistic system parameters.

• OSTI ID: 21448448
• Journal Information: Physical Review. A, Vol. 82, Issue 2; Other Information: DOI: 10.1103/PhysRevA.82.022301; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
77 NANOSCIENCE AND NANOTECHNOLOGY
COMPUTERIZED SIMULATION
ELECTRONS
EXCITATION
GHZ RANGE
MAGNETIC FIELDS
PHOTONS
QUANTUM DOTS
SPIN
VELOCITY
ANGULAR MOMENTUM
BOSONS
ELEMENTARY PARTICLES
ENERGY-LEVEL TRANSITIONS
FERMIONS
FREQUENCY RANGE
LEPTONS
MASSLESS PARTICLES
NANOSTRUCTURES
PARTICLE PROPERTIES
SIMULATION