Proposal for detection of non-Markovian decay via current noise
arXiv:cond-mat/0701541 · doi:10.1103/PhysRevB.77.035312
Abstract
We propose to detect non-Markovian decay of an exciton qubit coupled to multi-mode bosonic reservoir via shot-noise measurements. Non-equilibrium current noise is calculated for a quantum dot embedded inside a \QTR{it}{p-i-n} junction. An additional term from non-Markovian effect is obtained in the derivation of noise spectrum. As examples, two practical photonic reservoirs, photon vacuum with the inclusion of cut-off frequency and surface plasmons, are given to show that the noise may become super-Poissonian due to this non-Markovian effect. Utilizing the property of super-radiance is further suggested to enhance the noise value.
arXiv comment6 pages, 4 figures, To appear in Phys. Rev. B (2008)
References in corpus (17)
- Shot Noise in Mesoscopic Conductors
- Random-Matrix Theory of Quantum Transport
- Quantum Optics with Surface Plasmons
- Co-tunneling current and shot noise in quantum dots
- Shot Noise Spectrum of Open Dissipative Quantum Two-level Systems
- Shot Noise of a Quantum Shuttle
- Noise enhancement due to quantum coherence in coupled quantum dots
- Asymmetric Quantum Shot Noise in Quantum Dots
- Non-Markovian dynamics of double quantum dot charge qubits due to acoustic phonons
- Non-Markovian qubit dynamics in a thermal field bath: Relaxation, decoherence and entanglement
- Optimal strategy for a single-qubit gate and trade-off between opposite types of decoherence
- Enhanced Shot Noise in Tunneling through a Stack of Coupled Quantum Dots
- Super-Poissonian shot noise in the resonant tunneling due to coupling with a localized level
- Current detection of superradiance and induced entanglement of double quantum dot excitons
- Shot noise spectrum of superradiant entangled excitons
- Resonant tunneling of quantum dot in a microcavity
- Current noise of a quantum dot p-i-n junction in a photonic crystal