|
related topics |
{energy, state, states} |
{entanglement, phys, rev} |
{equation, function, exp} |
{temperature, thermal, energy} |
{information, entropy, channel} |
{observables, space, algebra} |
{state, states, entangled} |
{let, theorem, proof} |
{phase, path, phys} |
{operator, operators, space} |
|
Single-Site Entanglement of Fermions at a Quantum Phase Transition
Daniel Larsson, Henrik Johannesson
abstract: We show that the single-site entanglement of a generic spin-1/2 fermionic
lattice system can be used as a reliable marker of a finite-order quantum phase
transition, given certain provisos. We discuss the information contained in the
single-site entanglement measure, and provide illustrations from the
Mott-Hubbard metal-insulator transitions of the one-dimensional Hubbard model,
and the Hubbard model with long-range hopping.
- oai_identifier:
- oai:arXiv.org:quant-ph/0602048
- categories:
- quant-ph cond-mat.str-el
- comments:
- 4 pages, no figure. Published version
- doi:
- 10.1103/PhysRevA.73.042320
- arxiv_id:
- quant-ph/0602048
- journal_ref:
- Phys. Rev. A 73, 042320 (2006)
- created:
- 2006-02-03
- updated:
- 2006-05-19
Full article ▸
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