Simple quantum logic gate with quantum dot cavity QED systems

2011 ◽  
Vol 84 (23) ◽  
Author(s):  
T. D. Ladd ◽  
Y. Yamamoto
Keyword(s):  
Quantum Dot ◽  
Quantum Logic ◽  
Cavity Qed ◽  
Logic Gate ◽  
Quantum Logic Gate ◽  
Simple Quantum

scholarly journals 2D Material-based Quantum Logic Gate Operating Via Self-Organization of Quantum Dots

2020 ◽  
pp. 13-20
Author(s):  
V.K. Voronov ◽  
O. V. Dudareva ◽  
L.A. Gerashchenko
Keyword(s):  
Quantum Dot ◽  
Quantum Logic ◽  
Electronic Device ◽  
Logic Gate ◽  
Self Organization ◽  
Quantum Logic Gate ◽  
2D Material ◽  
Computation Procedure ◽  
Self Organized ◽  
Interaction Characteristic

In the paper, nanotrigger-based electronic device, capable of performing the quantum computation procedure, is described. The device represents a quantum logic gate formed from a two-dimensional material and controlled by a quantum dot. The operation of the quantum dot is analyzed. In the model representation, the transition between two states of the quantum dot, each of which controls the flow of the nanotransistor current (one of the shoulders of the nanotrigger), is equivalent to tunneling through an energy barrier separating the states. Fundamentally important is the fact that in one of these states the quantum dot is diamagnetic, and in the other it is paramagnetic. The paramagnetism of the quantum dot is due to the electronic exchange interaction, characteristic of the systems with unpaired electrons. Thus, the elementary self-organized 2D-material-derived logic gate disclosed in the present work can be employed for design of an electronic reversible unit.In other words, such a unit is able to prepare and to trigger the computation procedure.

Simple cavity-QED two-bit universal quantum logic gate: The principle and expected performances

1995 ◽  
Vol 52 (5) ◽  
pp. 3554-3559 ◽  
Author(s):  
P. Domokos ◽  
J. M. Raimond ◽  
M. Brune ◽  
S. Haroche
Keyword(s):  
Quantum Logic ◽  
Cavity Qed ◽  
Logic Gate ◽  
Quantum Logic Gate ◽  
Universal Quantum

scholarly journals Methodology for quantum logic gate construction

2000 ◽  
Vol 62 (5) ◽  
Author(s):  
Xinlan Zhou ◽  
Debbie W. Leung ◽  
Isaac L. Chuang
Keyword(s):  
Quantum Logic ◽  
Logic Gate ◽  
Quantum Logic Gate

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.

scholarly journals A quantum logic gate between a solid-state quantum bit and a photon

2013 ◽  
Vol 7 (5) ◽  
pp. 373-377 ◽  
Author(s):  
Hyochul Kim ◽  
Ranojoy Bose ◽  
Thomas C. Shen ◽  
Glenn S. Solomon ◽  
Edo Waks
Keyword(s):  
Solid State ◽  
Quantum Logic ◽  
Logic Gate ◽  
Quantum Logic Gate ◽  
Quantum Bit

scholarly journals All-optical-fiber polarization-based quantum logic gate

2009 ◽  
Vol 79 (3) ◽  
Author(s):  
Alex S. Clark ◽  
Jérémie Fulconis ◽  
John G. Rarity ◽  
William J. Wadsworth ◽  
Jeremy L. O’Brien
Keyword(s):  
Optical Fiber ◽  
Quantum Logic ◽  
Logic Gate ◽  
Quantum Logic Gate ◽  
All Optical
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