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Comment on "Interaction of two solitary waves in quantum electron-positron-ion plasma" [Phys. Plasmas \textbf{18}, 052301 (2011)]
two solitary waves quantum electron-positron-ion plasma
2011/8/4
Abstract: Recently, Yan-Xia Xu, et al. in the article Ref. [Phys. Plasmas \textbf{18}, 052301 (2011)] have studied the effects of various plasma parameters on interaction of two ion-acoustic solitary ...
Localized whistlers in magnetized spin quantum plasmas
Localized whistlers magnetized spin quantum plasmas
2010/10/27
The nonlinear propagation of electromagnetic (EM) electron-cyclotron waves (whistlers) along
an external magnetic field, and their modulation by electrostatic small but finite amplitude ionacoustic d...
Spatial search using the discrete time quantum walk
Spatial search discrete time quantum walk
2010/11/8
We study the quantum walk search algorithm of Shenvi, Kempe and Whaley [PRA 67 052307 (2003)] on data structures of one to two spatial dimensions, on which the algorithm is thought to be less efficie...
Comment on "Quantum Control and Entanglement in a Chemical Compass"
Quantum Control Entanglement a Chemical Compass
2010/10/29
In this comment we show that the avian compass entanglement considerations of J. Cai, G. G. Guerreschi and H. J. Briegel (Phys. Rev. Lett. 104, 220502 (2010)) result in unphysical predictions on the m...
We study the discrete-time quantum walk-based search for a marked vertex on a graph. By considering various structures in which not all vertices are equivalent, we investigate the relationship between...
Spin Squeezing, Negative Correlations, and Concurrence in the Quantum Kicked Top Model
Spin Squeezing Negative Correlations Concurrence Quantum Kicked Top Model
2010/10/29
We study spin squeezing, negative correlations, and concurrence in the quantum kicked top model. We prove that the spin squeezing and negative correlations are equivalent for spin systems with only sy...
The Effect of Spatially Dependent Screening On the Donor Ionization Energy in a Quantum Wire
Donor Ionization Energy Quantum Wire
2010/4/16
The effect of the spatially dependent screening on the ionization energy of a shallow donor in a 1D quantum well wire made of Ga1-xAlx/GaAs superlattice is presented. A variational approach is used to...