61 citations · 128 across the 6 of their papers we have counts for
6 papers
Achieving the ultimate precision limit in quantum NMR spectroscopy
Daniel Cohen, Tuvia Gefen, Laura Ortiz +1
The ultimate precision limit in estimating the Larmor frequency of unentangled rotating spins is well established, and is highly important for magnetometers, gyroscopes and man…
Quantum Error Correction with the Semion Code
Guillaume Dauphinais, Laura Ortiz, Santiago Varona +1
We present a full quantum error correcting procedure with the semion code: an off-shell extension of the double semion model. We construct open strings operators that recover the q…
Topological Phases in Nodeless Tetragonal Superconductors
Santiago Varona, Laura Ortiz, Oscar Viyuela +1
We compute the topological phase diagram of 2D tetragonal superconductors for the only possible nodeless pairing channels compatible with that crystal symmetry. Subject to a Zeeman…
Localization and oscillations of Majorana fermions in a two-dimensional electron gas coupled with -wave superconductors
Laura Ortiz, Santiago Varona, Oscar Viyuela +1
We study the localization and oscillation properties of the Majorana fermions that arise in a two-dimensional electron gas (2DEG) with spin-orbit coupling (SOC) and a Zeeman field…
A bilayer Double Semion Model with Symmetry-Enriched Topological Order
L. Ortiz, M. A. Martin-Delgado
We construct a new model of two-dimensional quantum spin systems that combines intrinsic topo- logical orders and a global symmetry called flavour symmetry. It is referred as the b…
Generic helical edge states due to Rashba spin-orbit coupling in a topological insulator
Laura Ortiz, Rafael A. Molina, Gloria Platero +1
We study the helical edge states of a two-dimensional topological insulator without axial spin symmetry due to the Rashba spin-orbit interaction. Lack of axial spin symmetry can le…