Coherence control for qubits
arXiv:quant-ph/0307236 · doi:10.1016/j.chemphys.2003.09.015
Abstract
We study the influence of an external driving field on the coherence properties of a qubit under the influence of bit-flip noise. In the presence of driving, two paradigmatic cases are considered: (i) a field that results for a suitable choice of the parameters in so-called coherent destruction of tunneling and (ii) one that commutes with the static qubit Hamiltonian. In each case, we give for high-frequency driving a lower bound for the coherence time. This reveals the conditions under which the external fields can be used for coherence stabilization.
15 pages, 1 figure
References in corpus (14)
- Quantum Computation with Quantum Dots
- Dynamical Decoupling of Open Quantum Systems
- Manipulating the Quantum State of an Electrical Circuit
- Dynamical suppression of decoherence in two-state quantum systems
- Coherent Quantum Dynamics of a Superconducting Flux Qubit
- Quantum oscillations in two coupled charge qubits
- Floquet-Markov description of the parametrically driven, dissipative harmonic quantum oscillator
- Decoherence and dissipation during a quantum XOR gate operation
- Decoherence and gate performance of coupled solid state qubits
- Driven Tunneling Dynamics: Bloch-Redfield Theory versus Path Integral Approach
- Space, time, parallelism and noise requirements for reliable quantum computing
- Decoherence and dephasing in coupled Josephson-junction qubits
- Controlling decoherence of a two-level-atom in a lossy cavity
- Resonant cancellation of off-resonant effects in a multilevel qubit
Cited by in corpus (27)
- Driven quantum transport on the nanoscale
- Characterization of Qubit Dephasing by Landau-Zener Interferometry
- Vibrational effects in laser driven molecular wires
- Continuously decoupling single-qubit operations from a perturbing thermal bath of scalar bosons
- Quantum optimal control theory and dynamic coupling in the spin-boson model
- Diamond based single molecule magnetic resonance spectroscopy
- Quantum dynamics in strong fluctuating fields
- Short-Time Decoherence for General System-Environment Interactions
- Nonadiabatic Electron Manipulation in Quantum-Dot Arrays
- Coherence stabilization of a two-qubit gate by AC fields
- Decoherence control: Universal protection of two-qubit states and two-qubit gates using continuous driving fields
- Protection of entanglement from sudden death using continuous dynamical decoupling
- Discontinuities in driven spin-boson systems due to coherent destruction of tunneling: breakdown of the Floquet-Gibbs distribution
- Qubit interference at avoided crossings: The role of driving shape and bath coupling
- Landau-Zener interference at bichromatic driving
- Decoherence of a Driven Qubit
- Driving-induced amplification of non-Markovianity in open quantum systems evolution
- Spin relaxation in an InAs quantum dot in the presence of terahertz driving fields
- Continuously decoupling a Hadamard quantum gate from independent classes of errors
- Applications of Canonical Transformations
- Optimized continuous dynamical decoupling via differential geometry and machine learning
- Non-Markovian qubit decoherence during dispersive readout
- Time-resolved qubit readout via nonlinear Josephson inductance
- Improving the purity of one- and two-qubit gates by AC fields
- Spin conversion rates due to dipolar interactions in mono-isotopic quantum dots at vanishing spin-orbit coupling
- Floquet Dynamical Decoupling at Zero Bias
- Control of memory effects in a spin-boson system by periodic driving