Speaker
PALLABI DEY
(SAHA INSTITUTE OF NUCLEAR PHYSICS)
Description
Quantum Link Models with dynamical matter coupled to spin-1/2 U(1) gauge fields in d=2+1 and 3+1 can give rise to phases expected in QED and beyond. Using exact diagonalization techniques, we show that the ground state is always the sector which satisfies (G_e,G_o) = (d,-d), where d is the spatial dimension and e and o are even and odd sites. It can be analytically proven that this sector is free of the fermion sign problem. We also demonstrate that a meron cluster algorithm for the problem naturally samples the ground states of the Hamiltonian in the aforementioned Gauss Law sector.
| Parallel Session (for talks only) | Theoretical developments and applications beyond Standard Model |
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Author
PALLABI DEY
(SAHA INSTITUTE OF NUCLEAR PHYSICS)
Co-authors
Prof.
Debasish Banerjee
(University of Southampton)
Dr
Emilie Huffman
(Wake Forest University)
