315 citations · 3.1k across the 59 of their papers we have counts for
7 papers · 1 filter
Wiener-Hopf factorization approach to a bulk-boundary correspondence and stability conditions for topological zero-energy modes
Abhijeet Alase, Emilio Cobanera, Gerardo Ortiz +1
Both the physics and applications of fermionic symmetry-protected topological phases rely heavily on a principle known as bulk-boundary correspondence, which predicts the emergence…
Dualities and the phase diagram of the -clock model
G. Ortiz, E. Cobanera, Z. Nussinov
A new "bond-algebraic" approach to duality transformations provides a very powerful technique to analyze elementary excitations in the classical two-dimensional XY and -clock mo…
Real-space renormalization group for the transverse-field Ising model in two and three dimensions
Ryoji Miyazaki, Hidetoshi Nishimori, Gerardo Ortiz
The two- and three-dimensional transverse-field Ising models with ferromagnetic exchange interactions are analyzed by means of the real-space renormalization group method. The basi…
Unified approach to Quantum and Classical Dualities
E. Cobanera, G. Ortiz, Z. Nussinov
We show how classical and quantum dualities, as well as duality relations that appear only in a sector of certain theories ("emergent dualities"), can be unveiled, and systematical…
Dynamical non-ergodic scaling in continuous finite-order quantum phase transitions
Shusa Deng, Gerardo Ortiz, Lorenza Viola
We investigate the emergence of universal dynamical scaling in quantum critical spin systems adiabatically driven out of equilibrium, with emphasis on quench dynamics which involve…
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…
Quantum Projector Method on Curved Manifolds
V. Melik-Alaverdian, G. Ortiz, N. E. Bonesteel
A generalized stochastic method for projecting out the ground state of the quantum many-body Schrödinger equation on curved manifolds is introduced. This random-walk method is of w…