Emission of time-bin entangled particles into helical edge states

Abstract

We propose a single-particle source which emits into the helical edge states of a two-dimensional quantum spin Hall insulator. Without breaking time-reversal symmetry, this source acts like a pair of noiseless single-electron emitters which each inject separately into a chiral edge state. By locally breaking time-reversal symmetry, the source becomes a proper single-particle emitter which exhibits shot noise. Due to its intrinsic helicity, this system can be used to produce time-bin entangled pairs of electrons in a controlled manner. The shot noise created by the source is related to the concurrence of the emitted state.

5 Pages, 3 figures, published version

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• Entanglement entropy in dynamic quantum-coherent conductors
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• Time-resolved energy dynamics after single electron injection into an interacting helical liquid
• Two-particle interferometry in quantum Hall edge channels
• Dynamical separation of bulk and edge transport in HgTe-based 2D topological insulators
• Single-electron coherence: finite temperature versus pure dephasing
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• Electronic quantum optics beyond the integer quantum Hall effect
• Minimal-excitation single-particle emitters: A comparison of charge and energy transport properties
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• Dynamical transport measurement of the Luttinger parameter in helical edges states of 2D topological insulators
• Probing interactions via non-equilibrium momentum distribution and noise in integer quantum Hall systems at $\nu =2$
• Two-dimensional Fermionic Hong-Ou-Mandel Interference with Weyl Fermions
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• Interplay between Rashba interaction and electromagnetic field in the edge states of a 2D topological insulator
• Proposal for an ac spin current source
• Dynamic Cooper Pair Splitter
• Coherent Single Spin Source based on topological insulator
• Dephasing in single-electron generation due to environmental noise probed by Hong Ou Mandel interferometry
• Spectral properties of interacting helical channels driven by Lorentzian pulses
• Photoexcitation in two-dimensional topological insulators: Generating and controlling electron wavepackets in Quantum Spin Hall systems
• Emission of entangled Kramers pairs from a helical mesoscopic capacitor
• Quasiparticles states for integer- and fractional-charged electron wave packets
• Quantum computing through electron propagation in the edge states of quantum spin Hall systems
• Electron-Hole Entanglement in a Quantum Spin Hall Insulator
• Wave-particle duality of electrons with spin-momentum locking
• Quantum transport phenomena induced by time-dependent fields