315 citations · 3.1k across the 59 of their papers we have counts for
3 papers · 1 filter
Chiral phases of two-dimensional hard-core bosons with frustrated ring-exchange
Daniel Huerga, Jorge Dukelsky, Nicolas Laflorencie +1
We study the zero temperature phase diagram of two-dimensional hard-core bosons on a square lattice with nearest neighbour and plaquette (ring-exchange) hoppings, at arbitrary dens…
Repulsive Interactions in Quantum Hall Systems as a Pairing Problem
Gerardo Ortiz, Zohar Nussinov, Jorge Dukelsky +1
A subtle relation between Quantum Hall physics and the phenomenon of pairing is unveiled. By use of second quantization, we establish a connection between (i) a broad class of rota…
Discrete Quantum Theories
Andrew J. Hanson, Gerardo Ortiz, Amr Sabry +1
We explore finite-field frameworks for quantum theory and quantum computation. The simplest theory, defined over unrestricted finite fields, is unnaturally strong. A second framewo…