Zobrazeno 1 - 10
of 1 325
pro vyhledávání: '"Burnett K"'
Autor:
Ng, H. T., Burnett, K.
Publikováno v:
New J. Phys. 10 123014 (2008)
We study the dynamics of a pair of molecular ensembles trapped inside a superconducting resonator through which they are strongly coupled via a microwave field mode. We find that entanglement can be generated via "vacuum fluctuations" even when the m
Externí odkaz:
http://arxiv.org/abs/0705.3477
Publikováno v:
Phys. Rev. A 75, 033604 (2007)
For a condensate in a one-dimensional ring geometry, we compare the thermodynamic properties of three conceptually different classical field techniques: stochastic dynamics, microcanonical molecular dynamics, and the classical field method. Starting
Externí odkaz:
http://arxiv.org/abs/cond-mat/0611645
Publikováno v:
Phys. Rev. A 75, 063607 (2007)
We study a new type of Josephson device, the so-called "optical Josephson junction" as proposed in Phys. Rev. Lett. {\bf 95}, 170402 (2005). Two condensates are optically coupled through a waveguide by a pair of Bragg beams. This optical Josephson ju
Externí odkaz:
http://arxiv.org/abs/quant-ph/0611190
We consider how macroscopic quantum superpositions may be created from arrays of Bose-Einstein condensates. We study a system of three condensates in Fock states, all with the same number of atoms and show that this has the form of a highly entangled
Externí odkaz:
http://arxiv.org/abs/quant-ph/0608242
Autor:
Ng, H. T., Burnett, K.
Publikováno v:
Phys. Rev. A 75, 023601 (2007)
We study the area-dependent entropy and two-site entanglement for two state Bose-Einstein condensates in a 2D optical lattice. We consider the case where the array of two component condensates behave like an ensemble of spin-half particles with the i
Externí odkaz:
http://arxiv.org/abs/quant-ph/0606110
Autor:
Milstein, J. N., Burnett, K.
We propose a method for simulating the behaviour of small clusters of particles that explicitly accounts for all mean-field and binary-correlation effects. Our approach leads to a set of variational equations that can be used to study both the dynami
Externí odkaz:
http://arxiv.org/abs/cond-mat/0511444
Publikováno v:
Phys. Rev. A 73, 013401 (2006)
We discuss the use of high-order quantum accelerator modes to achieve an atom optical realization of a biased quantum random walk. We first discuss how one can create co-existent quantum accelerator modes, and hence how momentum transfer that depends
Externí odkaz:
http://arxiv.org/abs/physics/0508182
Publikováno v:
Phys. Rev. Lett. 94, 170402 (2005)
We study the short-time dynamics of a degenerate Fermi gas positioned near a Feshbach resonance following an abrupt jump in the atomic interaction resulting from a change of external magnetic field. We investigate the dynamics of the condensate order
Externí odkaz:
http://arxiv.org/abs/cond-mat/0412454
Publikováno v:
New Journal of Physics 7 (2005) 221
We present a mathematical formalism for the description of unrestricted quantum walks with entangled coins and one walker. The numerical behaviour of such walks is examined when using a Bell state as the initial coin state, two different coin operato
Externí odkaz:
http://arxiv.org/abs/quant-ph/0411151
Autor:
Roth, R., Burnett, K.
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 37 (2004) 3893-3907
We investigate the dynamic structure factor of atomic Bose and Fermi gases in one-dimensional optical lattices at zero temperature. The focus is on the generic behaviour of S(k,omega) as function of filling and interaction strength with the aim of id
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407361