315 citations · 3.1k across the 59 of their papers we have counts for
3 papers · 1 filter
Quantum phase transitions in matrix product systems
Michael M. Wolf, Gerardo Ortiz, Frank Verstraete +1
We investigate quantum phase transitions (QPTs) in spin chain systems characterized by local Hamiltonians with matrix product ground states. We show how to theoretically engineer s…
Integrable models for asymmetric Fermi superfluids: Emergence of a new exotic pairing phase
J. Dukelsky, G. Ortiz, S. M. A. Rombouts +1
We introduce an exactly-solvable model to study the competition between the Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) and breached-pair superfluid in strongly interacting ultracold a…
BCS-to-BEC crossover from the exact BCS solution
Gerardo Ortiz, Jorge Dukelsky
The BCS-to-BEC crossover, as well as the nature of Cooper pairs, in a superconducting and Fermi superfluid medium is studied from the exact ground state wavefunction of the reduced…