Exploiting Many-Body Bus States for Multi-Qubit Entanglement

Abstract

A spin bus is formed from a linear array of quantum dots, with one electron per dot, and strong, always-on exchange interactions. When the spin bus is coupled to external spin qubits, it provides a mechanism for mediating effective long-range interactions. In this project, our efforts were divided between three main tasks: (1) to develop multi-qubit entangling protocols using the spin-bus; (2) to clarify bus decoherence properties and to optimize the robustness of bus operations; (3) to investigate methods of bus operation that could be enhanced in the vicinity of a quantum phase transition.

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Document Details

Document Type
Technical Report
Publication Date
Jun 06, 2013
Accession Number
ADA594989

Entities

People

  • Mark Friesen
  • Xuedong Hu

Organizations

  • University of Wisconsin Madison Department of Physics

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Ground State
  • Magnetic Fields
  • Magnetic Resonance
  • Nuclear Properties
  • Nuclear Spins
  • Phase Transformations
  • Quantum Circuits
  • Quantum Computing
  • Quantum Dots
  • Quantum Electrodynamics
  • Quantum Mechanics
  • Quantum Properties
  • Quantum States
  • Quantum Teleportation
  • Resonance
  • Spin-Orbit Interaction

Fields of Study

  • Physics

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Microelectronics
  • Quantum Computing
  • Quantum Science - Quantum Dots