21.7k citations
- Imperial College LondonGB99 papers
- University of OxfordGB9 papers
- University of HertfordshireGB5 papers
- Austrian Academy of SciencesAT4 papers
- Institute for Quantum Optics and Quantum Information InnsbruckAT4 papers
- Tel Aviv UniversityIL4 papers
- Universität InnsbruckAT4 papers
- University College LondonGB4 papers
- University of PotsdamDE4 papers
- ETH ZurichCH3 papers
- Humboldt-Universität zu BerlinDE3 papers
- Institute of Photonic SciencesES3 papers
16 papers · 1 filter
Geometric Phases and Critical Phenomena in a Chain of Interacting Spins
M. E. Reuter, M. J. Hartmann, M. B. Plenio
The geometric phase can act as a signature for critical regions of interacting spin chains in the limit where the corresponding circuit in parameter space is shrunk to a point and…
General linear-optical quantum state generation scheme: Applications to maximally path-entangled states
N. M. VanMeter, P. Lougovski, D. B. Uskov +3
We introduce schemes for linear-optical quantum state generation. A quantum state generator is a device that prepares a desired quantum state using product inputs from photon sourc…
Unitarity Cuts with Massive Propagators and Algebraic Expressions for Coefficients
Ruth Britto, Bo Feng
In the first part of this paper, we extend the d-dimensional unitarity cut method of hep-ph/0609191 to cases with massive propagators. We present formulas for integral reduction wi…
Covariance matrices and the separability problem
O. Gühne, P. Hyllus, O. Gittsovich +1
We propose a unifying approach to the separability problem using covariance matrices of locally measurable observables. From a practical point of view, our approach leads to strong…
Percolation, renormalization, and quantum computing with non-deterministic gates
K. Kieling, T. Rudolph, J. Eisert
We apply a notion of static renormalization to the preparation of entangled states for quantum computing, exploiting ideas from percolation theory. Such a strategy yields a novel w…
Evenly distributed unitaries: on the structure of unitary designs
D. Gross, K. Audenaert, J. Eisert
We clarify the mathematical structure underlying unitary -designs. These are sets of unitary matrices, evenly distributed in the sense that the average of any -th order polyn…