Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Scharfenberger, Burkhard"'
We propose a scheme for performing an entanglement-swapping operation within a quantum communications hub (a Bell like measurement) using an NV centre's $|\pm 1\rangle \leftrightarrow | A_2 \rangle$ optical transition. This is based on the heralded a
Externí odkaz:
http://arxiv.org/abs/1506.09036
Publikováno v:
New J. Phys. 16 (2014) 093043
We investigate the theoretically achievable fidelities when coherently controlling an effective three qubit system consisting of a negatively charged nitrogen vacancy (NV$^-$) center in diamond with an additional nearby carbon $^{13}$C spin $I_{\text
Externí odkaz:
http://arxiv.org/abs/1404.0475
Publikováno v:
J. Phys. A: Math. Theor. 45 (2012) 455202
Obtaining eigenvalues of permutations acting on the product space of $N$ representations of SU($n$) usually involves either diagonalising their representation matrices on total-weight subspaces or decomposing their characters, which can be obtained f
Externí odkaz:
http://arxiv.org/abs/1210.0346
Publikováno v:
Phys. Rev. B 84, 140404(R) (2011)
We propose a hierarchy of spin liquids with spin S, which are generated via a Schwinger boson projection from 2S (Abelian) chiral spin liquids with S=1/2. We argue that the P and T invariant liquids we construct for integer spin S support SU(2) level
Externí odkaz:
http://arxiv.org/abs/1105.4348
Publikováno v:
J. Phys.: Conf. Ser. 200, 022049 (2010)
We report on a spontaneous breakdown of parity in the ground state of a spin Hamiltonian involving nearest-neighbor interactions. This occurs for a one-dimensional model where spins transform under the gauge field representation of QCD, the eight-dim
Externí odkaz:
http://arxiv.org/abs/0905.4895
Publikováno v:
Phys. Rev. B 77, 045305 (2008)
We describe the effect of geometric phases induced by either classical or quantum electric fields acting on single electron spins in quantum dots in the presence of spin-orbit coupling. On one hand, applied electric fields can be used to control the
Externí odkaz:
http://arxiv.org/abs/0710.3931
Akademický článek
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Autor:
Scharfenberger, Burkhard
We use the Kalmeyer-Laughlin Chiral Spin Liquid as building block to construct a hierarchy of higher-spin spin liquids and determine numerically their topological properties. We compute the entanglement spectra of some of these liquids as well as of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4263f22bfa817fabb0019e06ac99a275
Akademický článek
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Publikováno v:
MRS Online Proceedings Library; 2013, Vol. 1596 Issue 1, p1-6, 6p
