Robust dynamic hamiltonian engineering of many-body spin systems

J Choi, H Zhou, HS Knowles, R Landig, S Choi… - Physical Review X, 2020‏ - APS
We introduce a new approach for the robust control of quantum dynamics of strongly
interacting many-body systems. Our approach involves the design of periodic global control …

Extending the coherence of spin defects in hBN enables advanced qubit control and quantum sensing

R Rizzato, M Schalk, S Mohr, JC Hermann… - Nature …, 2023‏ - nature.com
Negatively-charged boron vacancy centers (VB−) in hexagonal Boron Nitride (hBN) are
attracting increasing interest since they represent optically-addressable qubits in a van der …

Extending radiowave frequency detection range with dressed states of solid-state spin ensembles

JC Hermann, R Rizzato, F Bruckmaier… - npj Quantum …, 2024‏ - nature.com
Quantum sensors using solid-state spin defects excel in the detection of radiofrequency (RF)
fields, serving various applications in communication, ranging, and sensing. For this …

Four-Order Power Reduction in Nanoscale Electron–Nuclear Double Resonance with a Nitrogen-Vacancy Center in Diamonds

Z Hu, F Jiang, J He, Y Dai, Y Wang, N Xu, J Du - Nano Letters, 2024‏ - ACS Publications
Detecting nuclear spins using single nitrogen-vacancy (NV) centers is of particular
importance in nanoscale science and engineering but often suffers from the heating effect of …

Randomization of pulse phases for unambiguous and robust quantum sensing

ZY Wang, JE Lang, S Schmitt, J Lang, J Casanova… - Physical review …, 2019‏ - APS
We develop theoretically and demonstrate experimentally a universal dynamical decoupling
method for robust quantum sensing with unambiguous signal identification. Our method …

Efficacy of noisy dynamical decoupling

J Qi, X Xu, D Poletti, HK Ng - Physical Review A, 2023‏ - APS
Dynamical decoupling (DD) refers to a well-established family of methods for error
mitigation, comprising pulse sequences aimed at averaging away slowly evolving noise in …

Influence of nuclear spin polarization on the spin-echo signal of an NV-center qubit

D Kwiatkowski, P Szańkowski, Ł Cywiński - Physical Review B, 2020‏ - APS
We consider the spin-echo dynamics of a nitrogen-vacancy (NV)-center qubit based on the
S= 1 ground-state spin manifold, caused by a dynamically polarized nuclear environment …

Segmented composite design of robust single-qubit quantum gates

I Kaplan, M Erew, Y Piasetzky, M Goldstein, Y Oz… - Physical Review A, 2023‏ - APS
Over the past few decades, quantum information processing research has focused heavily
on error-mitigation schemes and error-correcting codes. However, while many proposed …

Continuous drive heterodyne microwave sensing with spin qubits in hexagonal boron nitride

CJ Patrickson, V Haemmerli, S Guo, AJ Ramsay… - arxiv preprint arxiv …, 2024‏ - arxiv.org
Quantum sensors that use solid state spin defects have emerged as effective probes of weak
alternating magnetic signals. By recording the phase of a signal relative to an external clock …

Quantum bath control with nuclear spin state selectivity via pulse-adjusted dynamical decoupling

JE Lang, DA Broadway, GAL White, LT Hall, A Stacey… - Physical Review Letters, 2019‏ - APS
Dynamical decoupling (DD) is a powerful method for controlling arbitrary open quantum
systems. In quantum spin control, DD generally involves a sequence of timed spin flips (π …