Entangling nuclear spins in distant quantum dots via an electron bus
arXiv:2012.09507 · doi:10.1103/PhysRevApplied.18.014009
Abstract
We propose a protocol for the deterministic generation of entanglement between two ensembles of nuclear spins surrounding two distant quantum dots. The protocol relies on the injection of electrons with definite polarization in each quantum dot and the coherent transfer of electrons from one quantum dot to the other. Computing the exact dynamics for small systems, and using an effective master equation and approximate non-linear equations of motion for larger systems, we are able to confirm that our protocol indeed produces entanglement for both homogeneous and inhomogeneous systems. Last, we analyze the feasibility of our protocol in several current experimental platforms.
References in corpus (63)
- Separability Criterion for Density Matrices
- Separability of Mixed States: Necessary and Sufficient Conditions
- Entanglement detection
- An addressable quantum dot qubit with fault-tolerant control fidelity
- Universal Quantum Computation with Continuous-Variable Cluster States
- Quantum spin squeezing
- Electron spin coherence exceeding seconds in high purity silicon
- Storing quantum information for 30 seconds in a nanoelectronic device
- Entanglement generated by dissipation and steady state entanglement of two macroscopic objects
- Dissipative Phase Transition in Central Spin Systems
- Shuttling a single charge across a one-dimensional array of silicon quantum dots
- Long-lived memory for mesoscopic quantum bits
- Coherent control of single electrons: a review of current progress
- Electron spin dynamics in quantum dots and related nanostructures due to hyperfine interaction with nuclei
- Detecting and polarizing nuclear spins with double resonance on a single electron spin
- Nuclear spin state narrowing via gate--controlled Rabi oscillations in a double quantum dot
- Dissipatively driven entanglement of two macroscopic atomic ensembles
- Quantum Interface of an Electron and a Nuclear Ensemble
- Nuclear Spins in Nanostructures
- AC-driven double quantum dots as spin pumps and spin filters
- Coherent electrical control of a single high-spin nucleus in silicon
- Single-Spin CCD
- Coherent spin qubit transport in silicon
- Hyperfine interactions in silicon quantum dots
- Notch filtering the nuclear environment of a spin qubit
- Unifying several separability conditions using the covariance matrix criterion
- Semiconductor few-electron quantum dot operated as a bipolar spin filter
- Separability criterion for separate quantum systems
- A silicon quantum-dot-coupled nuclear spin qubit
- Distant spin entanglement via fast and coherent electron shuttling
- Quenching of dynamic nuclear polarization by spin-orbit coupling in GaAs quantum dots
- Nuclear spin ferromagnetic phase transition in an interacting 2D electron gas
- Sound-driven single-electron transfer in a circuit of coupled quantum rails
- Measurement of the spin temperature of optically cooled nuclei and GaAs hyperfine constants in GaAs/AlGaAs quantum dots
- Quantum Description of Nuclear Spin Cooling in a Quantum Dot
- Collective quantum memory activated by a driven central spin
- Generating Entanglement and Squeezed States of Nuclear Spins in Quantum Dots
- Quantum sensing of a coherent single spin excitation in a nuclear ensemble
- Qubit protection in nuclear-spin quantum dot memories
- Cumulant expansion for the treatment of light-matter interactions in arbitrary material structures
- Phase Transitions in Dissipative Quantum Transport and Mesoscopic Nuclear Spin Pumping
- Multiple Nuclear Polarization States in a Double Quantum Dot
- First-principles hyperfine tensors for electrons and holes in GaAs and silicon
- Dynamic nuclear polarization as kinetically constrained diffusion
- Nuclear Spins as Quantum Memory in Semiconductor Nanostructures
- Large nuclear spin polarization in gate-defined quantum dots using a single-domain nanomagnet
- Theory of dynamic nuclear polarization and feedback in quantum dots
- Spin-polarized currents in double and triple quantum dots driven by ac magnetic fields
- Long-Distance Entanglement of Spin Qubits via Quantum Hall Edge States
- Steady-State Entanglement in the Nuclear Spin Dynamics of a Double Quantum Dot
- Nuclear Spin Dynamics in Double Quantum Dots: Multi-Stability, Dynamical Polarization, Criticality and Entanglement
- Long-lived memory for electronic spin in a quantum dot: Numerical analysis
- Spin entangled state transfer in quantum dot arrays: Coherent adiabatic and speed-up protocols
- Few-second-long correlation times in a quantum dot nuclear spin bath probed by frequency-comb NMR spectroscopy
- Nuclear spin dynamics, noise, squeezing and entanglement in box model
- Dissipative Long-Range Entanglement Generation between Electronic Spins
- Preparation of Non-equilibrium Nuclear Spin States in Double Quantum Dots
- Measurement of statistical nuclear spin polarization in a nanoscale GaAs sample
- Squeezing of Collective Excitations in Spin Ensembles
- Quantum limit for nuclear spin polarization in semiconductor quantum dots
- Self-sustaining dynamical nuclear polarization oscillations in quantum dots
- Temperature-dependent dynamical nuclear polarization bistabilities in double quantum dots in the spin-blockade regime
- Spin correlations and entanglement in partially magnetised ensembles of fermions