Generalized fast quasi-adiabatic population transfer for improved qubit readout, shuttling, and noise mitigation

Abstract

Population-transfer schemes are commonly used to convert information robustly stored in some quantum system for manipulation and memory into more macroscopic degrees of freedom for measurement. These schemes may include, e.g., spin-to-charge conversion for spins in quantum dots, detuning of charge qubits between a noise-insensitive operating point and a measurement point, spatial shuttling of qubits encoded in spins or ions, and parity-to-charge conversion schemes for qubits based on Majorana zero modes. A common strategy is to use a slow (adiabatic) conversion. However, in an adiabatic scheme, the adiabaticity conditions, on the one hand, and accumulation of errors through dephasing, leakage, and energy relaxation processes on the other hand, limit the fidelity that can be achieved. Here, we give explicit fast quasiadiabatic (fast-QUAD) conversion strategies (pulse shapes) beyond the adiabatic approximation that allow for optimal state conversion. In contrast with many other approaches, here we account for noise in combination with pulse shaping. Although we restrict to noise sources that can be modeled by a classical fluctuating parameter, we allow generally for anisotropic nonGaussian noise that is nevertheless sufficiently weak to lead to a small error. Inspired by analytic methods that have been developed for dynamical decoupling theory, we provide a general framework for unique noise mitigation strategies that can be tailored to the system and environment of interest.

arXiv commentThe new version includes text changes for clarity and a new charge qubit section. 15 pages, 9 figures

References in corpus (49)

• Shortcuts to adiabaticity: concepts, methods, and applications
• A >99.9%-fidelity quantum-dot spin qubit with coherence limited by charge noise
• Storage and retrieval of single photons transmitted between remote quantum memories
• Coherent manipulation of electronic states in a double quantum dot
• Quantum Search by Local Adiabatic Evolution
• 1/f noise: implications for solid-state quantum information
• Demonstration of the trapped-ion quantum-CCD computer architecture
• How to Enhance Dephasing Time in Superconducting Qubits
• Triplet-Singlet Spin Relaxation via Nuclei in a Double Quantum Dot
• Quantum Coherence in a One-Electron Semiconductor Charge Qubit
• Quantum control and process tomography of a semiconductor quantum dot hybrid qubit
• Minimizing irreversible losses in quantum systems by local counter-diabatic driving
• Speeding up adiabatic quantum state transfer by using dressed states
• Accelerated quantum control using superadiabatic dynamics in a solid-state lambda system
• Non-Abelian operations on Majorana fermions via single charge control
• A fast "hybrid" silicon double quantum dot qubit
• Correlating decoherence in transmon qubits: Low frequency noise by single fluctuators
• Theory of control of spin/photon interface for quantum networks
• Low-frequency noise as a source of dephasing of a qubit
• Non-Gaussian low-frequency noise as a source of qubit decoherence
• Low- and high-frequency noise from coherent two-level systems
• Dissipative Landau-Zener transitions of a qubit: bath-specific and universal behavior
• Gauging a quantum heat bath with dissipative Landau-Zener transitions
• Low-frequency spin qubit detuning noise in highly purified ${}^{28}$Si/SiGe
• Spin lifetime and charge noise in hot silicon quantum dot qubits
• Multiqubit Spectroscopy of Gaussian Quantum Noise
• Decoherence from ensembles of two-level fluctuators
• Coherent spin qubit transport in silicon
• Coherent spin state transfer via Heisenberg exchange
• Landau Zener transitions in a dissipative environment: Numerically exact results
• Fast quasi-adiabatic dynamics
• High-fidelity single-shot readout for a spin qubit via an enhanced latching mechanism
• Achieving High-Fidelity Single-Qubit Gates in a Strongly Driven Charge Qubit with $1/f$ Charge Noise
• In-situ Tuning of the Electric Dipole Strength of a Double Dot Charge Qubit: Charge Noise Protection and Ultra Strong Coupling
• Dissipation in Josephson qubits
• Superadiabatic quantum state transfer in spin chains
• Readout of Majorana parity states using a quantum dot
• Enhanced spin coherence while displacing electron in a 2D array of quantum dots
• Microscopic models for charge-noise-induced dephasing of solid-state qubits
• Parity-to-charge conversion for readout of topological Majorana qubits
• Interplay of charge noise and coupling to phonons in adiabatic electron transfer between quantum dots
• Qubit interference at avoided crossings: The role of driving shape and bath coupling
• Adiabatic electron charge transfer between two quantum dots in presence of 1/f noise
• Influence of nuclear spin polarization on spin echo signal of NV center qubit
• Counter-diabatic driving for fast spin control in a two-electron double quantum dot
• Suppression of the Landau-Zener transition probability by a weak classical noise
• Quantum search by parallel eigenvalue adiabatic passage
• Non-Markovian transient spectroscopy in cavity QED
• Coherent population transfer via state-independent quasi-adiabatic dynamics