A general approach to quantum dynamics using a variational master equation: Application to phonon-damped Rabi rotations in quantum dots

We propose an absorptive measurement scheme via coupled quantum dots based on studies of the quantum dynamics of coherently coupled dots. The system is described through a Markov master equation that is related to a measurable quantity, the current. We analyse the measurement configuration and calculate the correlations and noise spectra beyond the adiabatic approximation.

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Formation of non-classical optical states in spaser systems under control of an external magnetic field

EPJ Web of Conferences ◽

10.1051/epjconf/201922003017 ◽

2019 ◽

Vol 220 ◽

pp. 03017

Author(s):

Mikhail Gubin ◽

Alexei Prokhorov

Keyword(s):

Magnetic Field ◽

Quantum Dots ◽

External Magnetic Field ◽

Metal Nanoparticles ◽

Quantum Dynamics ◽

Semiconductor Quantum Dots ◽

Exciton Interaction ◽

Photon States

The work is focused on the investigation of features of quantum dynamics for photons in spaser systems consisting of metal nanoparticles (NP) and semiconductor quantum dots (QDs). The non-classical photon states generation in a three-particle spaser system with nonlinear plasmon-exciton interaction is predicted.

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Neural network representation and optimization of thermoelectric states of multiple interacting quantum dots

Physical Chemistry Chemical Physics ◽

10.1039/d0cp02894k ◽

2020 ◽

Vol 22 (28) ◽

pp. 16165-16173

Author(s):

Hangbo Zhou ◽

Gang Zhang ◽

Yong-Wei Zhang

Keyword(s):

Neural Network ◽

Machine Learning ◽

Quantum Dots ◽

Seebeck Coefficient ◽

Master Equation ◽

Thermoelectric Properties ◽

Electrical Conductance ◽

Thermal Conductance ◽

Quantum Master Equation ◽

Network Representation

We perform quantum master equation calculations and machine learning to investigate the thermoelectric properties of multiple interacting quantum dots, including electrical conductance, Seebeck coefficient, thermal conductance and ZT.

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Quantifying non-Markovianity for a chromophore–qubit pair in a super-Ohmic bath

Physical Chemistry Chemical Physics ◽

10.1039/c4cp04922e ◽

2015 ◽

Vol 17 (12) ◽

pp. 8087-8096 ◽

Cited By ~ 5

Author(s):

Jing Liu ◽

Kewei Sun ◽

Xiaoguang Wang ◽

Yang Zhao

Keyword(s):

Master Equation ◽

Quantum Dynamics

An approach based on a non-Markovian time-convolutionless polaron master equation is used to probe the quantum dynamics of a chromophore–qubit pair in a super-Ohmic bath and to quantify its non-markovianity.

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An Open Dynamical System Approach to Dissipative Quantum Dot Array Antennas

10.36227/techrxiv.17815241 ◽

2022 ◽

Author(s):

Said Mikki

Keyword(s):

Quantum Dot ◽

Master Equation ◽

Quantum Dynamics ◽

Antenna System ◽

Computational Approach ◽

Quantum Dissipation ◽

Analysis And Design ◽

Quantum Radiation ◽

Open Dynamical System ◽

External Signals

A new computational approach to quantum antennas based on first principle open stochastic quantum dynamics.<div><br></div><div>We develop a general computational approach for the analysis and design of quantum antenna systems comprised of coupled quantum dot arrays interacting with external fields and producing quantum radiation. The method is based on using the GKSL master equation to model quantum dissipation and decoherence. The density operator of a coupled two-level quantum dot (qbit) array, excited by classical external signals with variable amplitude and phase, is evolved in time using a quantum Liouville-like equation (the master equation). We illustrate the method in a numerical example where it is shown that manipulating the phase excitations of individual quantum dots may significantly enhance the directive radiation properties of the quantum dot antenna system<br></div>

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