First-Order Phase Transition in the Quantum Adiabatic Algorithm
Abstract
We simulate the quantum adiabatic algorithm (QAA) for the exact cover problem for sizes up to N = 256 using quantum Monte Carlo simulations incorporating parallel tempering. At large N, we find that some instances have a discontinuous (first-order) quantum phase transition during the evolution of the QAA. This fraction increases with increasing N and may tend to 1 for N - infinity.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 14, 2010
- Accession Number
- ADA579770
Entities
People
- Adam P. Young
- S. Knysh
- V. N. Smelyanskiy
Organizations
- University of California, Santa Cruz