Photon Number Coherence in Quantum Dot-Cavity Systems can be Enhanced by Phonons
arXiv:2409.08643 · doi:10.1002/qute.202400455
Abstract
Semiconductor quantum dots are a versatile source of single photons with tunable properties to be used in quantum-cryptographic applications. A crucial figure of merit of the emitted photons is photon number coherence (PNC), which impacts the security of many quantum communication protocols. In the process of single-photon generation, the quantum dot as a solid-state object is subject to an interaction with phonons, which can therefore indirectly affect the PNC. In this paper, we elaborate on the origin of PNC in optically excited quantum dots and how it is affected by phonons. In contrast to the expectation that phonons always deteriorate coherence, PNC can be increased in a quantum dot-cavity system due to the electron-phonon interaction.
References in corpus (28)
- Quantum cryptography: Public key distribution and coin tossing
- Near optimal single photon sources in the solid state
- Overcoming the rate-distance barrier of quantum key distribution without using quantum repeaters
- Quantum dot single photon sources: Prospects for applications in linear optics quantum information processing
- On-demand generation of background--free single photons from a solid-state source
- Phonon induced Rabi frequency renormalization of optically driven single InGaAs/GaAs quantum dots
- Quantum Communication Using Semiconductor Quantum Dots
- Quantum dot Rabi rotations beyond the weak exciton-phonon coupling regime
- Modelling exciton-phonon interactions in optically driven quantum dots
- Non-Markovian model of photon-assisted dephasing by electron-phonon interactions in a coupled quantum-dot-cavity system
- Resonant nature of phonon-induced damping of Rabi oscillations in quantum dots
- Discrete-phase-randomized coherent state source and its application in quantum key distribution
- Swing-up of quantum emitter population using detuned pulses
- The role of phonons for exciton and biexciton generation in an optically driven quantum dot
- Evaluation of the phase randomness of the light source in quantum key distribution systems with an attenuated laser
- Emission-frequency separated high quality single-photon sources enabled by phonons
- On-Demand Generation of Indistinguishable Photons in the Telecom C-Band using Quantum Dot Devices
- Stimulated generation of indistinguishable single photons from a quantum ladder system
- Accuracy of the quantum regression theorem for photon emission from a quantum dot
- Nonlinear cavity feeding and unconventional photon statistics in solid-state cavity QED revealed by many-level real-time path-integral calculations
- Path integral description of combined Hamiltonian and non-Hamiltonian dynamics in quantum dissipative system
- Phonon impact on optical control schemes of quantum dots: The role of quantum dot geometry and symmetry
- Formation dynamics of an entangled photon pair -- a temperature dependent analysis
- Path-integral approach for nonequilibrium multi-time correlation functions of open quantum systems coupled to Markovian and non-Markovian environments
- Controlling the Photon Number Coherence of Solid-state Quantum Light Sources for Quantum Cryptography
- Time-resolved pump-probe signals of a continuously driven quantum dot affected by phonons
- Influence of phonons on solid-state cavity-QED investigated using nonequilibrium Green's functions
- Swing-up dynamics in quantum emitter cavity systems