Quantum logic gates using linear optics and the Zeno effect

2004 ◽  
Author(s):  
J.D. Franson ◽  
B.C. Jacobs ◽  
T.B. Pittman
Keyword(s):  
Quantum Logic ◽  
Logic Gates ◽  
Linear Optics ◽  
Quantum Logic Gates ◽  
Zeno Effect

Experimental Progress in Linear Optics Quantum Computing

2003 ◽  
Vol 3 (special) ◽  
pp. 553-562
Author(s):  
J.D. Franson ◽  
M.M. Donegan ◽  
M.J. Fitch ◽  
B.C. Jacobs ◽  
T.B. Pittman
Keyword(s):  
Quantum Logic ◽  
Logic Gates ◽  
Memory Device ◽  
High Fidelity ◽  
Single Photons ◽  
Linear Optics ◽  
Optical Elements ◽  
Quantum Logic Gates ◽  
Feed Forward Control ◽  
Logic Operations

Probabilistic quantum logic operations can be performed using linear optical elements and post-selection based on the results of measurements on ancilla photons. We review the results of a number of recent experiments in this area, including the demonstration of several quantum logic gates, the use of feed-forward control, a new source of single photons, and a quantum memory device for single photons. A high-fidelity approach in which the logic gates always produce an output will also be discussed.

scholarly journals Universal quantum logic gates in a scalable Ising spin quantum computer

2008 ◽  
Vol 372 (32) ◽  
pp. 5270-5273 ◽  
Author(s):  
G.F. Mkrtchian
Keyword(s):  
Quantum Logic ◽  
Quantum Computer ◽  
Logic Gates ◽  
Quantum Logic Gates ◽  
Ising Spin ◽  
Spin Quantum ◽  
Universal Quantum

Quantum logic gates by adiabatic passage

2006 ◽  
Vol 135 (1) ◽  
pp. 209-210 ◽  
Author(s):  
X. Lacour ◽  
N. Sangouard ◽  
S. Guérin ◽  
H. R. Jauslin
Keyword(s):  
Quantum Logic ◽  
Logic Gates ◽  
Adiabatic Passage ◽  
Quantum Logic Gates

scholarly journals Supporting Information "Quantum logic gates based on DNAtronics, RNAtronics and Proteintronics"

2021 ◽  
Author(s):  
Sheh-Yi Sheu ◽  
Hua-Yi Hsu ◽  
Dah-Yen Yang
Keyword(s):  
Quantum Logic ◽  
Potential Energy Surfaces ◽  
Logic Gates ◽  
Vacuum System ◽  
Transmission Spectra ◽  
Superposition State ◽  
Quantum Logic Gates ◽  
Energy Surfaces ◽  
Double Well Potential ◽  
Truth Tables

This Supporting Information includes the extended description of the superposition state of the asymmetric double-well system in vacuum system and in solution, truth tables for the residue pairs and their corresponding quantum logic gates, and figures for the double well potential energy surfaces and transmission spectra of the residue pairs. Corresponding Authors Email: [email protected] and [email protected]

scholarly journals QUANTUM LOGIC GATES USING q-DEFORMED OSCILLATORS

2006 ◽  
Vol 04 (02) ◽  
pp. 297-305 ◽  
Author(s):  
DEBASHIS GANGOPADHYAY ◽  
MAHENDRA NATH SINHA ROY
Keyword(s):  
Angular Momentum ◽  
Phase Shift ◽  
Quantum Logic ◽  
Logic Gates ◽  
Quantum Logic Gates ◽  
Single Qubit ◽  
Schwinger Mechanism

We show that quantum logic gates, viz. the single qubit Hadamard and Phase Shift gates, can also be realized using q-deformed angular momentum states constructed via the Jordan–Schwinger mechanism with two q-deformed oscillators.

Quantum logic gates with a two-level trapped ion in a high-finesse cavity beyond the Lamb–Dicke limit

2007 ◽  
Vol 40 (3) ◽  
pp. 507-516 ◽  
Author(s):  
Xiao-Juan Zheng ◽  
Mao-Fa Fang ◽  
Xiang-Ping Liao ◽  
Jian-Wu Cai
Keyword(s):  
Quantum Logic ◽  
Logic Gates ◽  
Quantum Logic Gates ◽  
Trapped Ion ◽  
High Finesse ◽  
High Finesse Cavity

Quantum logic gates generated by SC-charge qubits coupled to a resonator

2012 ◽  
Vol 45 (48) ◽  
pp. 485305 ◽  
Author(s):  
A-S F Obada ◽  
H A Hessian ◽  
A-B A Mohamed ◽  
Ali H Homid
Keyword(s):  
Quantum Logic ◽  
Logic Gates ◽  
Quantum Logic Gates ◽  
Charge Qubits

Realizing an N-two-qubit quantum logic gate in a cavity QED with nearest qubit--qubit interaction

2016 ◽  
Vol 16 (5&6) ◽  
pp. 465-482
Author(s):  
Taoufik Said ◽  
Abdelhaq Chouikh ◽  
Karima Essammouni ◽  
Mohamed Bennai
Keyword(s):  
Quantum Logic ◽  
Cavity Qed ◽  
Logic Gate ◽  
Operation Time ◽  
Logic Gates ◽  
Initial State ◽  
Gate Operation ◽  
Quantum Logic Gates ◽  
Current State ◽  
Phase Gate

We propose an effective way for realizing a three quantum logic gates (NTCP gate, NTCP-NOT gate and NTQ-NOT gate) of one qubit simultaneously controlling N target qubits based on the qubit-qubit interaction. We use the superconducting qubits in a cavity QED driven by a strong microwave field. In our scheme, the operation time of these gates is independent of the number N of qubits involved in the gate operation. These gates are insensitive to the initial state of the cavity QED and can be used to produce an analogous CNOT gate simultaneously acting on N qubits. The quantum phase gate can be realized in a time (nanosecond-scale) much smaller than decoherence time and dephasing time (microsecond-scale) in cavity QED. Numerical simulation under the influence of the gate operations shows that the scheme could be achieved efficiently within current state-of-the-art technology.

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