Adiabatic topological quantum computing [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 2015.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description:: Article numbers 012,336 : digital, PDF file
Additional Creators:: Sandia National Laboratories, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

Access Online

www.osti.gov

Availability

Finding items...

Restrictions on Access:

Free-to-read Unrestricted online access

Summary:

Topological quantum computing promises error-resistant quantum computation without active error correction. However, there is a worry that during the process of executing quantum gates by braiding anyons around each other, extra anyonic excitations will be created that will disorder the encoded quantum information. Here, we explore this question in detail by studying adiabatic code deformations on Hamiltonians based on topological codes, notably Kitaev’s surface codes and the more recently discovered color codes. We develop protocols that enable universal quantum computing by adiabatic evolution in a way that keeps the energy gap of the system constant with respect to the computation size and introduces only simple local Hamiltonian interactions. This allows one to perform holonomic quantum computing with these topological quantum computing systems. The tools we develop allow one to go beyond numerical simulations and understand these processes analytically.

Report Numbers:

E 1.99:1214810

Subject(s):

Classical And Quantum Mechanics, General Physics

Note:

Published through SciTech Connect.
07/31/2015.
Physical Review. A 92 1 ISSN 1050-2947; PLRAAN AM
Cesare, Chris; Landahl, Andrew; Bacon, Dave; Flammia, Steven; Neels, Alice.

Funding Information:

AC04-94AL85000

View MARC record | catkey: 23503498