Quantum computing for bosonic fields

Abstract: As universal quantum computers move from theoretical devices towards concrete realizations, albeit still quite experimental, there is a lot of interest in understanding whether outstanding problems in nuclear physics, like real-time dynamics and bulk properties of nuclear matter, could be solved using these machines. For these applications we need to represent in hardware quantum field theories for both fermionic and bosonics degrees of freedom. Discretized fermionic fields can be represented fully since they map naturally onto qbits. On the other hand bosonic degrees of freedom--which even for discretized fields require an infinite dimensional Hilbert space at each site--require a truncation. In this talk I discuss two directions we investigated to address this problem: using discrete subsets to represent gauge degrees of freedom, or truncations in a dual space that that preserve the original symmetries of the theory. As test-cases for these ideas we use pure-gauge QCD and the sigma-model.

HEP - theory

Audience: researchers in the topic

Comments: Password: 146625

Theoretical Physics Seminars (Kentucky)