Single-Particle State Mixing in Two-Electron Coupled Quantum Dots

2021 ◽  
pp. 263-274
Author(s):  
Dmitriy V. Melnikov ◽  
Jean-Pierre Leburton
Keyword(s):  
Quantum Dots ◽  
Single Particle ◽  
Single Particle State ◽  
Particle State ◽  
Coupled Quantum Dots ◽  
State Mixing

ANTI-RESONANCES OF TUNNELING THROUGH A QUANTUM WIRE WITH SIDE-COUPLED QUANTUM DOTS

2001 ◽  
Vol 15 (31) ◽  
pp. 4111-4121 ◽  
Author(s):  
JIN-FU FENG ◽  
SHI-JIE XIONG
Keyword(s):  
Quantum Dots ◽  
Single Particle ◽  
Low Temperatures ◽  
Quantum Wire ◽  
Coulomb Blockade ◽  
Destructive Interference ◽  
Channel Network ◽  
Coupled Quantum Dots ◽  
Coulomb Blockade Regime ◽  
Simple Summation

We study the transport properties of electrons in a quantum wire with side-coupled quantum dots in Coulomb blockade regime by the use of the equivalent single-particle multi-channel network and Landauer formula. At low temperatures the calculated dependence of the conductance on the gate voltage of dots exhibits two dips, indicating the destructive interference of the wave directly transmitted through the wire and the wave reflected from the dots. In a wire with more than one side-coupled dots the suppression of conductance is a simple summation of the effects of scattering of all the dots. The possibility of fabricating tunable switch devices by using such structures is discussed.

Quantum state sharing of an arbitrary m-particle state using Einstein–Podolsky–Rosen pairs and application in quantum voting

2021 ◽  
pp. 2150151
Author(s):  
Comfort Sekga ◽  
Mhlambululi Mafu
Keyword(s):  
Quantum State ◽  
Single Particle ◽  
Single Particle State ◽  
Electronic Voting ◽  
Particle State ◽  
Quantum State Sharing ◽  
Original State ◽  
Einstein Podolsky Rosen ◽  
Qubit States ◽  
Quantum Voting

In this paper, we propose a scheme where Alice shares an arbitrary m-particle unknown state with her agents, Bob and Charlie. Alice starts by distributing 2m Einstein–Podolsky–Rosen pairs with her agents and performs m joint three-particle Greenberger–Horne–Zeilinger state measurements on her particles. Bob, who acts as the controller, performs a product measurement [Formula: see text] on his m qubit states while Charlie retrieves the original state by performing unitary operations on his m particles. Subsequently, we demonstrate our proposed scheme’s feasibility by applying it in electronic voting by sharing an arbitrary single-particle state.

Teleportation of three-dimensional single particle state in noninertial frames

2014 ◽  
Vol 23 (2) ◽  
pp. 020303 ◽  
Author(s):  
Qi-Cheng Wu ◽  
Jing-Ji Wen ◽  
Xin Ji ◽  
Yeon Kyu-Hwang
Keyword(s):  
Single Particle ◽  
Three Dimensional ◽  
Single Particle State ◽  
Particle State

The 3701 keV neutron g 9/2 single-particle state in 57Ni

1999 ◽  
Vol 6 (4) ◽  
pp. 377-380 ◽  
Author(s):  
D. Rudolph ◽  
D. Weisshaar ◽  
F. Cristancho ◽  
J. Eberth ◽  
C. Fahlander ◽  
...  
Keyword(s):  
Single Particle ◽  
Single Particle State ◽  
Particle State

Bonding-Antibonding Ground States Transition in Coupled Quantum Dots

2012 ◽  
Vol 220-223 ◽  
pp. 2017-2021
Author(s):  
Nai Yun Tang
Keyword(s):  
Quantum Dots ◽  
Single Particle ◽  
Ground State ◽  
State Transition ◽  
Ground States ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Ground State Transition ◽  
Coupled Quantum Dots ◽  
Molecular Ground State

The two lowest single-particle hole states in two vertically coupled quntum dots (CQDs) are investigated by using the six-band k • p model. A bonding–antibonding ground-state transition is observed with an increasing interdot distance. This result is counterintuitive since the antibonding molecular ground state is never observed in natural diatomic molecules. By comparing the wavafunction component of hole, the results verify that the reordering of bonding and antibonding orbitals with an increasing interdot distance is caused by spin–orbit interaction of holes.

Sign in / Sign up

Export Citation Format

Share Document