Quantum-Field-Theoretic Simulation Platform for Observing the Fate of the False Vacuum

@inproceedings{Abel2021QuantumFieldTheoreticSP,
  title={Quantum-Field-Theoretic Simulation Platform for Observing the Fate of the False Vacuum},
  author={Steven A. Abel and Michael Spannowsky},
  year={2021}
}
A framework for simulating nonperturbative effects of field theory using a quantum annealer is presented and implemented. 

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References

SHOWING 1-10 OF 39 REFERENCES

Quantum computing for quantum tunneling

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

Effective field theory approach to gravitationally induced decoherence.

TLDR
It is shown that gravity as an environment induces the rapid decoherence of stationary matter superposition states when the energy differences in the superposition exceed the Planck energy scale.

Supersymmetry Breaking by Instantons

It is shown that instantons generate a superpotential in supersymmetric QCD with $N$ colors and $N\ensuremath{-}1$ flavors.

Quantum simulations of the early universe

A procedure is described whereby a linearly coupled spinor Bose condensate can be used as a physically accessible quantum simulator of the early universe. In particular, an experiment to generate an

Quantum tunneling of magnetization in small ferromagnetic particles.

TLDR
Estimated tunneling rates of the magnetization in a single-domain particle through an energy barrier between easy directions prove to be large enough for observation of the effect with the use of existing experimental techniques.

Fate of the false vacuum. II. First quantum corrections

It is possible for a classical field theory to have two homogeneous stable equilibrium states with different energy densities. In the quantum version of the theory, the state of higher energy density

Quantum dynamics and tunneling of domain walls in ferromagnetic insulators.

  • Stamp
  • Physics
    Physical review letters
  • 1991
It is shown how large domain walls, containing ≥10 10 spins, can behave as quantum objects at low temperatures. They move quantum diffusively, and exhibit macroscopic tunneling from defect pinning

Fate of the false vacuum: Towards realization with ultra-cold atoms

Quantum decay of a relativistic scalar field from a false vacuum is a fundamental idea in quantum field theory. It is relevant to models of the early Universe, where the nucleation of bubbles gives