The connection between noise and quantum correlations in a double quantum dot

Abstract

We investigate the current and noise characteristics of a double quantum dot system. The strong correlations induced by the Coulomb interaction create entangled two-electron states and lead to signatures in the transport properties. We show that the interaction parameter phi, which measures the admixture of the double-occupancy contribution to the singlet state and thus the degree of entanglement, can be directly accessed through the Fano factor of super-Poissonian shot noise.

5 pages, major revision, to be published in Phys. Rev. B

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Cited by in corpus (8)

• Entanglement between charge qubits induced by a common dissipative environment
• Wave-packet Formalism of Full Counting Statistics
• Tunable dynamical channel blockade in double-dot Aharonov-Bohm interferometers
• Fano stability diagram of a symmetric triple quantum dot
• Enhanced shot noise in asymmetric interacting two level systems
• Single Spin Transport Spectroscopy - Current Blockade and Spin Decay
• Finite-frequency noise, Fano factor, $\Delta T$-noise and cross-correlations in double quantum dots
• Non-Markovian full counting statistics in quantum dot molecules