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Theoretical study of nonlinear optical rectification of a cylindrical quantum dot molecule in the Born–Markov regime

J.D. Arias, Alfonso A. Portacio, D.A. Rasero

Physica B Condensed MatterNov 28, 20240 citations

Theory on the effect of optical dephasing due to absorbing media on spontaneous emission on microcav

Yong Lee, M. Yamanishi

Aug 24, 20050 citations

Optical Generation and Control of Quantum Coherence in Semiconductor Nanostructures

Gabriela M. Slavcheva, Philippe Roussignol

Nanoscience and technologyJan 1, 201054 citations

Cooperative radiative decay in the nonlinear optical response of excitonic nanostructures

Vladimir Chernyak, Shaul Mukamel

The nonlinear susceptibility ${\mathrm{\ensuremath{\chi}}}^{(3)}$ and the four-wave mixing signal from assemblies of molecules with nonoverlapping charge distributions and an arbitrary geometry are calculated using Green's-function techniques. At low molecular density and under off-resonant excitation we recover the local-field approximation. The role of retarded interactions and cooperative spontaneous emission in the electrodynamics of confined excitons in molecular quantum wells is discussed.The nonlinear susceptibility ${\mathrm{\ensuremath{\chi}}}^{(3)}$ and the four-wave mixing signal from assemblies of molecules with nonoverlapping charge distributions and an arbitrary geometry are calculated using Green's-function techniques. At low molecular density and under off-resonant excitation we recover the local-field approximation. The role of retarded interactions and cooperative spontaneous emission in the electrodynamics of confined excitons in molecular quantum wells is discussed.

Physical review. B, Condensed matterJul 15, 199334 citations

Decoherence

Riccardo Manenti, Mário Motta

Abstract This chapter is dedicated to open quantum systems. We explain the origin of non-unitary time evolution by studying different interactions between a qubit and the environment. The first part of the chapter introduces the time evolution equation of an open quantum system, also called the Born-Markov master equation and the Redfield equation. We then study the interaction between a qubit and a thermal bath of harmonic oscillators and introduce the qubit relaxation and the dephasing times. After discussing the relationship between relaxation and dephasing times of a qubit and the power spectral density of the noise source, we present the Hahn echo and the Carr-Purcell-Meiboom-Gill experiments, two protocols that provide information about the noise spectrum. The chapter ends with a discussion of the driven evolution of a qubit subject to spontaneous emission and dephasingAbstract This chapter is dedicated to open quantum systems. We explain the origin of non-unitary time evolution by studying different interactions between a qubit and the environment. The first part of the chapter introduces the time evolution equation of an open quantum system, also called the Born-Markov master equation and the Redfield equation. We then study the interaction between a qubit and a thermal bath of harmonic oscillators and introduce the qubit relaxation and the dephasing times. After discussing the relationship between relaxation and dephasing times of a qubit and the power spectral density of the noise source, we present the Hahn echo and the Carr-Purcell-Meiboom-Gill experiments, two protocols that provide information about the noise spectrum. The chapter ends with a discussion of the driven evolution of a qubit subject to spontaneous emission and dephasing

Aug 25, 20230 citations

Quantum theory of spontaneous emission and coherent effects in semiconductor microstructures

M. Kira, F. Jahnke, W. Hoyer +1 more

Progress in Quantum ElectronicsNov 1, 1999235 citations

Theoretical study on optical response in nanostructures in the Born–Markov regime: The role of spontaneous emission and dephasing

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Theoretical study on optical response in nanostructures in the Born–Markov regime: The role of spontaneous emission and dephasing

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