Optimal spin-entangled electron-hole pair pump

Abstract

A nonperturbative theory is presented for the creation by an oscillating potential of spin-entangled electron-hole pairs in the Fermi sea. In the weak potential limit, considered earlier by Samuelsson and Buttiker, the entanglement production is much less than one bit per cycle. We demonstrate that a strong potential oscillation can produce an average of one Bell pair per two cycles, making it an efficient source of entangled flying qubits.

6 pages including 1 figure -- Two appendices contain material that is not in the Journal version: A) Gaussian elimination for fermions; B) class of optimal pump cycles

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Cited by in corpus (44)

• Coherent control of single electrons: a review of current progress
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• Shot noise of a mesoscopic two-particle collider
• Two-particle non-local Aharonov-Bohm effect from two single-particle emitters
• Visibility of current and shot noise in electrical Mach-Zehnder and Hanbury Brown Twiss interferometers
• Photon-assisted electron-hole shot noise in multi-terminal conductors
• Time scales in the dynamics of an interacting quantum dot
• Dynamical control of interference using voltage pulses in the quantum regime
• Scattering Theory of Dynamic Electrical Transport
• Magnetic field symmetry of pump currents of adiabatically driven mesoscopic structures
• Time-resolved noise of adiabatic quantum pumps
• Dynamic scattering channels of a double barrier structure
• Emission of time-bin entangled particles into helical edge states
• First-order correlation function of the stream of single-electron wave-packets
• Generating spin-entangled electron pairs in normal conductors using voltage pulses
• Proposal for non-local electron-hole turnstile in the Quantum Hall regime
• Interaction-induced charge and spin pumping through a quantum dot at finite bias
• Quasiparticle entanglement: redefinition of the vacuum and reduced density matrix approach
• Entanglement of two delocalised electrons
• Optimal pumping of orbital entanglement with single particle emitters
• Spectral distribution and wavefunction of electrons emitted from a single particle source in the quantum Hall regime
• Quantum Pumping with Ultracold Atoms on Microchips: Fermions versus Bosons
• Controlled Flow of Spin-Entangled Electrons via Adiabatic Quantum Pumping
• Control of electron-hole pair generation by biharmonic voltage drive of a quantum point contact
• Optimal electron entangler and single electron source at low temperatures
• Multi-particle correlations of an oscillating scatterer
• Spin in Compton scattering with pronounced polarization dynamics
• Entanglement detection for electrons via witness operators
• Finite-temperature Bell test for quasiparticle entanglement in the Fermi sea
• Multi-particle interference in an electronic Mach-Zehnder interferometer
• Full Counting Statistics of Quantum Point Contact with Time-dependent Transparency
• Entanglement at finite temperatures in the electronic two-particle interferometer
• Dynamic Cooper Pair Splitter
• Quantum pump driven fermionic Mach-Zehnder interferometer
• Emergence of Intra-Particle Entanglement and Time-Varying Violation of Bell's Inequality in Dirac Matter
• Normal and abnormal electron-hole pairs in a voltage-pulse-driven quantum conductor
• Pseudospin entanglement and Bell test in graphene
• Electron-Hole Entanglement in a Quantum Spin Hall Insulator
• Quasiparticles states for integer- and fractional-charged electron wave packets
• Continuous-Variable Entanglement Test in Driven Quantum Contacts
• Floquet-Nambu theory of electron quantum optics with superconductors
• Entanglement and the Kondo effect in double quantum dots
• A Quantum Singlet Pump
• Adiabatic quantum pumping in an Aharonov-Bohm loop and in a Si-like nanowire: Role of interference in real space and in momentum space