All-electric single electron spin-to-charge conversion
arXiv:1804.10595 · doi:10.1103/PhysRevB.98.125411
Abstract
We examine spin-dependent displacement of a single electron, resulting in separation and relocation of the electron wavefunction components, and thus charge parts, corresponding to opposite spins. This separation is induced by a pulse of an electric field which generates varying Rashba type spin-orbit coupling. This mechanism is next implemented in a nanodevice based on a gated quantum dot defined within a quantum nanowire. The electric field pulse is generated by ultrafast changes of voltages, of the order of several hundred mV, applied to nearby gates. The device is modeled realistically with appropriate material parameters and voltages applied to the gates, yielding an accurate confinement potential and Rashba coupling. At the end, we propose a spin-to-charge conversion device, which with an additional charge detector will allow for electron spin state measurement.
arXiv comment7 pages, 7 figures
References in corpus (54)
- Topological Insulators
- Spintronics: Fundamentals and applications
- Quantum Computation with Quantum Dots
- Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
- Valley polarization in MoS2 monolayers by optical pumping
- Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
- Helical liquids and Majorana bound states in quantum wires
- Experimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km
- Spins in few-electron quantum dots
- The Physical Implementation of Quantum Computation
- Single-shot read-out of an individual electron spin in a quantum dot
- Manipulating the Quantum State of an Electrical Circuit
- Hybrid quantum circuits: Superconducting circuits interacting with other quantum systems
- Coherent control of a single electron spin with electric fields
- Coherent manipulation of electronic states in a double quantum dot
- Spin-orbit qubit in a semiconductor nanowire
- Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits
- Prospects for Spin-Based Quantum Computing
- Spin-pumping into surface states of topological insulator α-Sn, spin to charge conversion at room temperature
- Quantum Coherence in a One-Electron Semiconductor Charge Qubit
- All-electric all-semiconductor spin field effect transistors
- Measurements with a noninvasive detector and dephasing mechanism
- Single-shot readout of electron spin states in a quantum dot using spin-dependent tunnel rates
- Rapid Single-Shot Measurement of a Singlet-Triplet Qubit
- Spectroscopy of spin-orbit quantum bits in indium antimonide nanowires
- A fast "hybrid" silicon double quantum dot qubit
- Fast spin-orbit qubit in an indium antimonide nanowire
- Transition from fractional to Majorana fermions in Rashba nanowires
- Excited-state spectroscopy on a nearly-closed quantum dot via charge detection
- Long-Range Interaction of Spin-Qubits via Ferromagnets
- Long-distance spin-spin coupling via floating gates
- Pulse-gated quantum dot hybrid qubit
- Fast and robust spin manipulation in a quantum dot by electric fields
- Tunable Spin Qubit Coupling Mediated by a Multi-Electron Quantum Dot
- Pauli spin blockade in carbon nanotube double quantum dots
- Floquet spin states in graphene under ac driven spin-orbit interaction
- Modulated Rashba interaction in a quantum wire: Spin and charge dynamics
- A Simple Picosecond Pulse Generator Based on a Pair of Step Recovery Diodes
- Long-Distance Entanglement of Spin Qubits via Quantum Hall Edge States
- Exact Nonadiabatic Holonomic Transformations of Spin-Orbit Qubits
- Long distance coupling of resonant exchange qubits
- Exchange-interaction of two spin qubits mediated by a superconductor
- Electron spin rotations induced by oscillating Rashba interaction in a quantum wire
- Long-Range Interaction between Charge and Spin Qubits in Quantum Dots
- Exact CNOT Gates with a Single Nonlocal Rotation for Quantum-Dot Qubits
- Coherent manipulation of a Majorana qubit by a mechanical resonator
- Position and Spin Control by Dynamical Ultrastrong Spin-Orbit Coupling
- Charge-to-spin conversion of electron entanglement states and spin-interaction-free solid-state quantum computation
- Photo-induced spin filtering in a double quantum dot
- Generation of Schrödinger's cat states in a planar semiconductor heterostructure
- Simple operation sequences to couple and interchange quantum information between spin qubits of different kinds
- Generation of spin-dependent coherent states in a quantum wire
- Decoherence induced by electron accumulation in quantum measurement of charge qubits
- All-electric single electron spin initialization