Qubit-environment entanglement outside of pure decoherence: hyperfine interaction
arXiv:2210.10553 · doi:10.1103/PhysRevB.107.085428
Abstract
In spin-based architectures of quantum devices, the hyperfine interaction between the electron spin qubit and the nuclear spin environment remains one of the main sources of decoherence. This paper provides a short review of the current advances in the theoretical description of the qubit decoherence dynamics. Next, we study the qubit-environment entanglement using negativity as its measure. For an initial maximally mixed state of the environment, we study negativity dynamics as a function of environment size, changing the numbers of environmental nuclei and the total spin of the nuclei. Furthermore, we study the effect of the magnetic field on qubit-environment disentangling time scales.
References in corpus (84)
- Quantum Computation with Quantum Dots
- Separability Criterion for Density Matrices
- A computable measure of entanglement
- Decoherence, einselection, and the quantum origins of the classical
- Quantum sensing
- Separability of Mixed States: Necessary and Sufficient Conditions
- Decoherence Free Subspaces for Quantum Computation
- Dynamical suppression of decoherence in two-state quantum systems
- The logarithmic negativity: A full entanglement monotone that is not convex
- Decoherence, the measurement problem, and interpretations of quantum mechanics
- Noiseless Quantum Codes
- Mixed-state entanglement and distillation: is there a ``bound'' entanglement in nature?
- Electron spin relaxation by nuclei in semiconductor quantum dots
- A >99.9%-fidelity quantum-dot spin qubit with coherence limited by charge noise
- A single-atom electron spin qubit in silicon
- Keeping a Quantum Bit Alive by Optimized -Pulse Sequences
- The European Quantum Technologies Roadmap
- Fault-Tolerant Quantum Dynamical Decoupling
- Preserving coherence in quantum computation by pairing quantum bits
- Theory of the spin bath
- Nuclear spin physics in quantum dots: an optical investigation
- Quantum certification and benchmarking
- Theory of electron spin decoherence by interacting nuclear spins in a quantum dot
- Non-Markovian dynamics in a spin star system: Exact solution and approximation techniques
- Electron spin evolution induced by interaction with nuclei in a quantum dot
- Ge hole spin qubit
- Electron spin dynamics in quantum dots and related nanostructures due to hyperfine interaction with nuclei
- Quantum many-body theory of qubit decoherence in a finite-size spin bath
- Revival of quantum correlations without system-environment back-action
- A single-hole spin qubit
- Random decoupling schemes for quantum dynamical control and error suppression
- Universality of Uhrig dynamical decoupling for suppressing qubit pure dephasing and relaxation
- Pure quantum dephasing of a solid state electron spin qubit in a large nuclear spin bath coupled by long-range hyperfine-mediated interactions
- Restoring Coherence Lost to a Slow Interacting Mesoscopic Bath
- Separability in 2xN composite quantum systems
- A scheme for direct detection of qubit-environment entanglement generated during qubit pure dephasing
- Universal pulse sequence to minimize spin dephasing in the central spin decoherence problem
- Universal coherence protection in a solid-state spin qubit
- Environmental noise spectroscopy with qubits subjected to dynamical decoupling
- Roadmap for gallium arsenide spin qubits
- Roadmap on quantum nanotechnologies
- Entanglement between a diamond spin qubit and a photonic time-bin qubit at telecom wavelength
- Control of electron spin decoherence caused by electron-nuclear spin dynamics in a quantum dot
- Hyperfine interaction induced decoherence of electron spins in quantum dots
- Quantum dot spin qubits in Silicon: Multivalley physics
- Quantum and classical correlations in quantum Brownian motion
- Entanglement Sharing and Decoherence in the Spin-Bath
- Quantum Decoherence of Two Qubits
- Dynamical decoupling noise spectroscopy at an optimal working point of a qubit
- System-bath entanglement in nanothermodynamics
- Dynamics and decoherence in the central spin model using exact methods
- Conditional quantum operation of two exchange-coupled single-donor spin qubits in a MOS-compatible silicon device
- Suppression of decoherence via strong intra-environmental coupling
- Decoherence and the Nature of System-Environment Correlations
- Induced decoherence and entanglement by interacting quantum spin baths
- Dephasing of electron spin qubits due to their interaction with nuclei in quantum dots
- Characterization and measurement of qubit-environment entanglement generation during pure dephasing
- Dynamics and decoherence in the central spin model in the low-field limit
- System-environment correlations and Non-Markovian dynamics
- Master equation approach to the central spin decoherence problem: the uniform coupling model and the role of projection operators
- Electrical Control of Coherent Spin Rotation of a Single-Spin Qubit
- Quantum Fingerprints in Higher Order Correlators of a Spin Qubit
- Equivalence of qubit-environment entanglement and discord generation via pure dephasing interactions and the consequences thereof
- Criteria for system-environment entanglement generation for systems of any size in pure-dephasing evolutions
- How to detect qubit-environment entanglement generated during qubit dephasing
- Rabi oscillations, decoherence, and disentanglement in a qubit-spin-bath system: exact dynamics
- Decoherence and Entanglement Dynamics in Fluctuating Fields
- The dynamical-decoupling-based spatiotemporal noise spectroscopy
- Genuine multipartite system-environment correlations in decoherent dynamics
- Sensitivity of the decay of entanglement of quantum dot spin qubits to the magnetic field
- Dynamics of entanglement of two electron spins interacting with nuclear spin baths in quantum dots
- Accuracy of dynamical-decoupling-based spectroscopy of Gaussian noise
- System-environment correlations for dephasing two-qubit states coupled to thermal baths
- Theory of box-model hyperfine couplings and transport signatures of long-range nuclear-spin coherence in a quantum-dot spin valve
- Entanglement generation between a charge qubit and its bosonic environment during pure dephasing - dependence on environment size
- Relationship between subjecting the qubit to dynamical decoupling and to a sequence of projective measurements
- Qubit-environment entanglement generation and the spin echo
- A measure of qubit environment entanglement for pure dephasing evolutions
- Qubit-environment Negativity versus Fidelity of conditional environmental states for an NV-center spin qubit interacting with a nuclear environment
- Purifying teleportation
- Detection of entanglement during pure dephasing evolutions for systems and environments of any size
- Transfer and teleportation of system-environment entanglement
- The decay of quantum correlations between quantum dot spin qubits and the characteristics of its magnetic field dependence
- Decoherence-assisted detection of entanglement of two qubit states