Measuring the Entanglement between Double Quantum Dot Charge Qubits

Abstract

We present a scheme for creating and measuring entanglement between two double quantum dot charge qubits in a transport set-up in which voltage pulses can modify system parameters. Detection of entanglement is performed via the construction of a Bell inequality with current correlation measurements. An essential feature is the use of the internal dynamics of the qubits as the constituent electrons tunnel into the leads to give the single-particle rotations necessary for the Bell measurement.

5 pages, 3 figures

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Cited by in corpus (13)

• Non-local transport properties of nanoscale conductor-microwave cavity systems
• The Leggett-Garg inequality in electron interferometers
• Proposal for a cumulant-based Bell test for mesoscopic junctions
• CMOS Position-Based Charge Qubits: Theoretical Analysis of Control and Entanglement
• Non-equilibrium correlations and entanglement in a semiconductor hybrid circuit-QED system
• Entropy, fidelity, and double orthogonality for resonance states in two-electron quantum dots
• Effect of induced transition on the quantum entanglement and coherence in two-coupled double quantum dots system
• Bell states and entanglement dynamics on two coupled quantum molecules
• Full Counting statistics of level renormalization in electron transport through double quantum dots
• Robust fermionic-mode entanglement of a nanoelectronic system in non-Markovian environments
• Leggett-Garg inequalities for the statistics of electron transport
• Deutsch's algorithm with topological charges of optical vortices via non-degenerate four-wave mixing
• Dynamics of interacting transport qubits