arXiv:quant-ph/0102052 · Physical Review A

Quantum phase gate with a selective interaction

E. Solano, Marcelo França Santos, P. Milman

Published Jul 12, 2001• 32 citations

Abstract

We present a proposal for implementing quantum phase gates using selective interactions. We analyze selectivity and the possibility to implement these gates in two particular systems, namely, trapped ions and cavity QED.

DOI: 10.1103/physreva.64.024304

Related papers

Scheme for Implementing an N-Qubit Phase Gate via Selective Atom-Field Interaction with Cavity Quantum Electrodynamics

邵晓强, 金星日, 朱爱东 +3 more

为与通过 high-Q 送光洞的原子实现一扇 two-qubit 阶段门的一个计划被选非相同的联合为在原子和洞之间的常数建议。原子自发的排放能被压制大原子的线索保持了 detuning。而且，计划能被概括实现时间不随 qubits 的数字的增加改变的一扇 N-qubit 阶段门和 gating。

Chinese Physics LettersJan 1, 20080 citations

Implementing quantum controlled phase gates with trapped ions

NI Zhi-xiang

A scheme for implementing three-qubit quantum controlled phase gate is proposed in the trap-ion system.It only requires the resonant interaction between trapped ions and lasers.Compared to the scheme in other papers,the steps needed are much less.In addition,the scheme doesn't need any type of measurement.

Chinese Journal of Quantum ElectronicsJan 1, 20110 citations

Cavity-QED-based quantum phase gates for a single longitudinal mode

R. García-Maraver, R. Corbalán, J. Mompart +3 more

A three level atom and a longitudinal mode of a cavity can implement two-qubit quantum phase gates. The qubits are represented by the zero-and one-photon states of the two circular polarization states of the field.

Quantum Electronics and Laser Science ConferenceDec 10, 20050 citations

One-Step Implementation of Mulitqubit Quantum Phase Gate in a Cavity QED System

樊秋波

Chinese Physics LettersJan 1, 20080 citations

Scheme for Implementing an N -Qubit Phase Gate via Selective Atom–Field Interaction with Cavity Quantum Electrodynamics

Shao Xiao-Qiang, Jin Xing-Ri, Ai‐Dong Zhu +2 more

A scheme for implementing a two-qubit phase gate with atoms sent through a high-Q optical cavity is proposed by choosing nonidentical coupling constants between the atoms and cavity. The atomic spontaneous emission can be suppressed due to the large atom-field detuning. Moreover, the scheme can be generalized to implement an N-qubit phase gate and the gating time does not change with an increase of the number of qubits.

Chinese Physics LettersJan 1, 20089 citations

Generation of two-mode nonclassical states and a quantum-phase-gate operation in trapped-ion cavity QED

Xu‐Bo Zou, K. Pahlke, Wolfgang M. Mathis

We propose a scheme to generate nonclassical states of a quantum system, which is composed of the one-dimensional trapped-ion motion and a single-cavity field mode. We show that two-mode SU(2), entangled coherent states, two-mode squeezed vacuum states, and their superposition can be generated. If the vibration mode and the cavity mode are used to represent separately a qubit, a quantum phase gate can be implemented.

arXiv:quant-ph/0204070Physical Review AJun 5, 200242 citations