92 citations · 1.4k across the 49 of their papers we have counts for
49 papers
Deconfined quantum criticality in Ising gauge theory entangled with single-component fermions
Umberto Borla, Snir Gazit, Sergej Moroz
We highlight the exotic quantum criticality of quasi-two-dimensional single-component fermions at half-filling that are minimally coupled to a dynamical Ising gauge theory. With th…
Wegner's Ising gauge spins versus Kitaev's Majorana partons: Mapping and application to anisotropic confinement in spin-orbital liquids
Urban F. P. Seifert, Sergej Moroz
Emergent gauge theories take a prominent role in the description of quantum matter, supporting deconfined phases with topological order and fractionalized excitations. A common con…
Noncommutative Field Theory of the Tkachenko Mode: Symmetries and Decay Rate
Yi-Hsien Du, Sergej Moroz, Dung Xuan Nguyen +1
We construct an effective field theory describing the collective Tkachenko oscillation mode of a vortex lattice in a two-dimensional rotating Bose-Einstein condensate in the long-w…
Higgs Condensates are Symmetry-Protected Topological Phases: I. Discrete Symmetries
Ruben Verresen, Umberto Borla, Ashvin Vishwanath +2
Where in the landscape of many-body phases of matter do we place the Higgs condensate of a gauge theory? On the one hand, the Higgs phase is gapped, has no local order parameter, a…
Finding the ground state of a lattice gauge theory with fermionic tensor networks: a demonstration
Patrick Emonts, Ariel Kelman, Umberto Borla +3
Tensor network states, and in particular Projected Entangled Pair States (PEPS) have been a strong ansatz for the variational study of complicated quantum many-body systems, thanks…
Confinement Induced Frustration in a One-Dimensional Lattice Gauge Theory
Matjaž Kebrič, Umberto Borla, Ulrich Schollwöck +3
Coupling dynamical charges to gauge fields can result in highly non-local interactions with a linear confining potential. As a consequence, individual particles bind into mesons wh…