Observing the fate of the false vacuum with a quantum laboratory
- URL: http://arxiv.org/abs/2006.06003v1
- Date: Wed, 10 Jun 2020 18:00:05 GMT
- Title: Observing the fate of the false vacuum with a quantum laboratory
- Authors: Steven Abel and Michael Spannowsky
- Abstract summary: We design and implement a quantum laboratory to experimentally observe and study dynamical processes of quantum field theories.
This is the first time it has been possible to experimentally measure instanton processes in a freely chosen quantum field theory.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We design and implement a quantum laboratory to experimentally observe and
study dynamical processes of quantum field theories. Our approach encodes the
field theory as an Ising model, which is then solved by a quantum annealer. As
a proof-of-concept, we encode a scalar field theory and measure the probability
for it to tunnel from the false to the true vacuum for various tunnelling
times, vacuum displacements and potential profiles. The results are in accord
with those predicted theoretically, showing that a quantum annealer is a
genuine quantum system that can be used as a quantum laboratory. This is the
first time it has been possible to experimentally measure instanton processes
in a freely chosen quantum field theory. This novel and flexible method to
study the dynamics of quantum systems can be applied to any field theory of
interest. Experimental measurements of the dynamical behaviour of field
theories are independent of theoretical calculations and can be used to infer
their properties without being limited by the availability of suitable
perturbative or nonperturbative computational methods. In the near future,
measurements in such a quantum laboratory could therefore be used to improve
theoretical and computational methods conceptually and may enable the
measurement and detailed study of previously unobserved quantum phenomena.
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