researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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Showing 2001 · quant-phShow all

11 papers · 2 filters

quant-ph2001★ 24 cited

Fetching marked items from an unsorted database in NMR ensemble computing

L. Xiao, G. L. Long

Searching a marked item or several marked items from an unsorted database is a very difficult mathematical problem. Using classical computer, it requires steps to find t…

quant-ph2001★ 11 cited

Experimental Realization of Brüschweiler's exponentially fast search algorithm in a homo-nuclear system

Li Xiao, G. L. Long, Hai-Yang Yan +1

Compared with classical search algorithms, Grover quantum algorithm [ Phys. Rev. Lett., 79, 325(1997)] achieves quadratic speedup and Bruschweiler hybrid quantum algorithm [Phys. R…

quant-ph2001

Inhomogeneous boson realizations of the polynomial angular momentum algebra of arbitrary power

Dong Ruan, Yufeng Jia, Hongzhou Sun

The inhomogeneous single-, two- and three-boson realizations of the more general polynomial angular momentum algebra SU_n(2) are obtained from the Fock representations of SU_n(2) t…

quant-ph2001★ 476 cited

General Scheme for Super Dense Coding between Multi-Parties

X. S. Liu, G. L. Long, D. M. Tong +1

Dense coding or super-dense coding in the case of high-dimension quantum states between two parties and multi-parties has been studied in this paper. We construct explicitly the me…

quant-ph2001★ 9 cited

The Precise Formula in a Sine Function Form of the norm of the Amplitude and the Necessary and Sufficient Phase Condition for Any Quantum Algorithm with Arbitrary Phase Rotations

Dafa Li

In this paper we derived the precise formula in a sine function form of the norm of the amplitude in the desired state, and by means of he precise formula we presented the necessar…

quant-ph2001★ 463 cited

Grover Algorithm with zero theoretical failure rate

G. L. Long

In standard Grover's algorithm for quantum searching, the probability of finding the marked item is not exactly 1. In this Letter we present a modified version of Grover's algorith…

quant-ph2001★ 21 cited

A More General Quantum Searching Algorithm And the Precise Formula of the Amplitude and the Non-symmetric Effects of Different Rotating Angles

Dafa Li, Xinxin Li

This paper presented two general quantum search algorithms. We derived the iterated formulas and the simpler approximate formulas and the precise formula for the amplitude in the d…

quant-ph2001★ 3 cited

High order quantum decoherence via multi-particle amplitude for boson system

D. L. Zhou, P. Zhang, C. P. Sun

In this paper we depict the high order quantum coherence of a boson system by using the multi-particle wave amplitude, whose norm square is just the high order correlation function…

quant-ph2001★ 188 cited

Remote state preparation in higher dimension and the parallelizable manifold

Bei Zeng, Peng Zhang

This paper proves that the remote state preparation (RSP) scheme in real Hilbert space can only be implemented when the dimension of the space is 2,4 or 8. This fact is shown to be…

quant-ph2001★ 161 cited

Entanglement in a two-identical-particle system

Yan Song Li, Bei Zeng, Xiao Shu Liu +1

The definition of entanglement in identical-particle system is introduced. The separability criterion in two-identical particle system is given. The physical meaning of the definit…

quant-ph2001★ 134 cited

Efficient Scheme for Initializing a Quantum Register with an Arbitrary Superposed State

Gui-Lu Long, Yang Sun

Preparation of a quantum register is an important step in quantum computation and quantum information processing. It is straightforward to build a simple quantum state such as $|i_…