Results 11 to 20 of about 34 (34)
Suppressing the geometric dephasing of Berry phase by using modified dynamical decoupling sequences
New Journal of Physics, 2017 Even though traditional dynamical decoupling methods have the ability to resist dynamic dephasing caused by low frequency noise, they are not appropriate for suppressing the residual geometric dephasing, which arises from the disturbance of the geometric
Xiao-Ke Qin +2 more
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New Journal of Physics, 2014 We propose the use of Rydberg interactions and ensembles of cold atoms in mixed state for the implementation of a protocol for deterministic quantum computation with one quantum bit that can be readily operated in high dimensional Hilbert spaces.
C W Mansell, S Bergamini
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New Journal of Physics, 2017 Systems passing through quantum critical points at finite rates have a finite probability of undergoing transitions between different eigenstates of the instantaneous Hamiltonian.
Jingfu Zhang +3 more
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Coherent control of an NV− center with one adjacent 13C
New Journal of Physics, 2014 We investigate the theoretically achievable fidelities when coherently controlling an effective three-qubit system consisting of a negatively charged nitrogen vacancy ( ^15 NV ^− ) center in diamond with an additional nearby carbon ^13 C spin ${{I}_{{\rm
Burkhard Scharfenberger +2 more
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Quantum-enhanced deliberation of learning agents using trapped ions
New Journal of Physics, 2015 A scheme that successfully employs quantum mechanics in the design of autonomous learning agents has recently been reported in the context of the projective simulation (PS) model for artificial intelligence.
V Dunjko, N Friis, H J Briegel
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Hexagonal plaquette spin–spin interactions and quantum magnetism in a two-dimensional ion crystal
New Journal of Physics, 2015 We propose a trapped ion scheme en route to realize spin Hamiltonians on a Kagome lattice which, at low energies, are described by emergent ${{\mathbb{Z}}}_{2}$ gauge fields, and support a topological quantum spin liquid ground state.
R Nath +5 more
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Controlling the transport of an ion: classical and quantum mechanical solutions
New Journal of Physics, 2014 The accurate transport of an ion over macroscopic distances represents a challenging control problem due to the different length and time scales that enter and the experimental limitations on the controls that need to be accounted for.
H A Fürst +8 more
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Universalidad de la computación cuántica geométrica modelo de tres estados
Ingeniería y Ciencia, 2005 El modelo de tres estados es un modelo de computación cuántica geométrica. Se ilustra que éste es un modelo de computación cuántica universal, con base en el trabajo desarrollado por Niskanen, Nakahara y Salomaa [16].
Andrés Sicard, Mario Elkin Vélez
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Speeding up adiabatic population transfer in a Josephson qutrit via counter-diabatic driving
New Journal of Physics, 2017 We propose a theoretical scheme to speed up adiabatic population transfer in a Josephson artificial qutrit by transitionless quantum driving. At a magic working point, an effective three-level subsystem can be chosen to constitute our qutrit. With Stokes
Zhi-Bo Feng +4 more
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Fast separation of two trapped ions
New Journal of Physics, 2015 We design fast protocols to separate or recombine two ions in a segmented Paul trap. By inverse engineering the time evolution of the trapping potential composed of a harmonic and a quartic term, it is possible to perform these processes in a few ...
M Palmero +4 more
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