Entanglement Capabilities of Nonlocal Hamiltonians

W. Dür; G. Vidal; J. I. Cirac; N. Linden; S. Popescu

doi:10.1103/PhysRevLett.87.137901

Entanglement Capabilities of Nonlocal Hamiltonians

W. Dür, G. Vidal, J. I. Cirac, N. Linden, and S. Popescu

Phys. Rev. Lett. 87, 137901 – Published 10 September 2001

Abstract

We quantify the capability of creating entanglement for a general physical interaction acting on two qubits. We give a procedure for optimizing the generation of entanglement. We also show that a Hamiltonian can create more entanglement if one uses auxiliary systems.

Received 7 June 2000

DOI:https://doi.org/10.1103/PhysRevLett.87.137901

Authors & Affiliations

W. Dür¹, G. Vidal¹, J. I. Cirac¹, N. Linden², and S. Popescu^3,4

¹Institut für Theoretische Physik, Universität Innsbruck, A-6020 Innsbruck, Austria
²Department of Mathematics, University of Bristol, University Walk, Bristol BS8 1TW, United Kingdom
³H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, United Kingdom
⁴BRIMS, Hewlett-Packard Laboratories, Stoke Gifford, Bristol BS12 6QZ, United Kingdom