367 citations · 1.1k across the 7 of their papers we have counts for
15 papers
The Schrodinger Equation, Reversibility and the Grover Algorithm
M. A. Martin-Delgado
Several aspects of the time-dependent Schrodinger equation are discussed in the context of Quantum Information Theory.
Localizable Entanglement
M. Popp, F. Verstraete, M. A. Martin-Delgado +1
We consider systems of interacting spins and study the entanglement that can be localized, on average, between two separated spins by performing local measurements on the remaining…
Implementation of Spin Hamiltonians in Optical Lattices
J. J. Garcia-Ripoll, M. A. Martin-Delgado, J. I. Cirac
We propose an optical lattice setup to investigate spin chains and ladders. Electric and magnetic fields allow us to vary at will the coupling constants, producing a variety of qua…
Diverging Entanglement Length in Gapped Quantum Spin Systems
F. Verstraete, M. A. Martin-Delgado, J. I. Cirac
We prove the existence of gapped quantum Hamiltonians whose ground states exhibit an infinite entanglement length, as opposed to their finite correlation length. Using the concept…
Entanglement and Concurrence in the BCS State
M. A. Martin-Delgado
An extension of the notion of concurrence introduced by Wooters is used to quantify the entanglement of certain multipartite pure states, namely, the BCS state of superconducting c…
Natural majorization of the Quantum Fourier Transformation in phase-estimation algorithms
Roman Orus, Jose I. Latorre, Miguel A. Martin-Delgado
We prove that majorization relations hold step by step in the Quantum Fourier Transformation (QFT) for phase-estimation algorithms considered in the canonical decomposition. Our re…