Affordable Access

deepdyve-link deepdyve-link
Publisher Website

Quantum computing with collective ensembles of multi-level systems

Authors
Type
Preprint
Publication Date
Submission Date
Identifiers
DOI: 10.1103/PhysRevLett.99.260501
Source
arXiv
License
Unknown
External links

Abstract

We propose a new physical approach for encoding and processing of quantum information in ensembles of multi-level quantum systems, where the different bits are not carried by individual particles but associated with the collective population of different internal levels. One- and two-bit gates are implemented by collective internal state transitions taking place in the presence of an excitation blockade mechanism which restricts the population of each internal state to the values zero and unity. 10-20 bit quantum computers can be built via this scheme in single trapped clouds of ground state atoms subject to the Rydberg excitation blockade mechanism, and the linear dependence between register size and the number of internal quantum states in atoms offers realistic means to reach larger registers.

Statistics

Seen <100 times