Shot noise of photon-excited electron-hole pairs in open quantum dots
نویسندگان
چکیده
منابع مشابه
Entangled photon pairs from semiconductor quantum dots.
Tomographic analysis demonstrates that the polarization state of pairs of photons emitted from a biexciton decay cascade becomes entangled when spectral filtering is applied. The measured density matrix of the photon pair satisfies the Peres criterion for entanglement by more than 3 standard deviations of the experimental uncertainty and violates Bell's inequality. We show that the spectral fil...
متن کاملElectron-hole crossover in graphene quantum dots.
We investigate the addition spectrum of a graphene quantum-dot in the vicinity of the electron-hole crossover as a function of perpendicular magnetic field. Coulomb-blockade resonances of the 50 nm wide dot are visible at all gate voltages across the transport gap ranging from hole to electron transport. The magnetic field dependence of more than 50 states displays the unique complex evolution ...
متن کاملStark effect of interactive electron-hole pairs in spherical semiconductor quantum dots.
We present a theoretical approach, based on the effective mass approximation model, on the quantum-confinement Stark effects for spherical semiconducting quantum dots in the regime of strong confinement of interactive electron-hole pairs and limiting weak electric field. The respective roles of Coulomb potential and polarization energy are investigated in detail. Under reasonable physical assum...
متن کاملCotunneling current and shot noise in quantum dots.
We derive general expressions for the current and the shot noise, taking into account non-Markovian memory effects. In generalization of previous approaches, our theory is valid for an arbitrary Coulomb interaction and coupling strength and is applicable to quantum dots and more complex systems such as molecules. A fully consistent diagrammatic expansion up to second order in the coupling stren...
متن کاملQuantum dots as a source of entangled photon pairs
Submitted for the MAR06 Meeting of The American Physical Society Quantum dots as a source of entangled photon pairs. MARK STEVENSON, ROBERT YOUNG, Toshiba Research Europe Limited, PAOLA ATKINSON, KEN COOPER, DAVID RITCHIE, Cavendish Laboratory, University of Cambridge, ANDREW SHIELDS, Toshiba Research Europe Limited — Quantum dots are considered an attractive system for applications in quantum ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2005
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.72.161302