Quantum Computing for Quantum Tunnelling
38 Citations•2020•
S. Abel, N. Chancellor, M. Spannowsky
arXiv: Quantum Physics
It is demonstrated how quantum field theory problems can be embedded on quantum annealers by a discretisation of the field theory problem into a general Ising model, with the continuous field values being encoded into Ising spin chains.
Abstract
We demonstrate how quantum field theory problems can be embedded on quantum annealers. The general method we use is a discretisation of the field theory problem into a general Ising model, with the continuous field values being encoded into Ising spin chains. To illustrate the method, and as a simple proof of principle, we use a (hybrid) quantum annealer to recover the correct profile of the thin-wall tunnelling solution. This method is applicable to many nonperturbative problems.