Electronic Noise Considerations for Designing Integrated Solid-State Quantum Memories

Abstract

As quantum networks expand and are deployed outside research laboratories, a need arises to design and integrate compact control electronics for each memory node. It is essential to understand the performance requirements for such systems, especially concerning tolerable levels of noise, since these specifications dramatically affect a system's design complexity and cost. Here, using an approach that can be easily generalized across quantum-hardware platforms, we present a case study based on nitrogen-vacancy (NV) centers in diamond. We model and experimentally verify the effects of phase noise and timing jitter in the control system in conjunction with the spin qubit's environmental noise. We further consider the impact of different phase noise characteristics on the fidelity of dynamical decoupling sequences. The results demonstrate a procedure to specify design requirements for integrated quantum control signal generators for solid-state spin qubits, depending on their coherence time, intrinsic noise spectrum, and required fidelity.

References in corpus (13)

• Universal dynamical decoupling of a single solid-state spin from a spin bath
• High-fidelity projective readout of a solid-state spin quantum register
• Realization of a multi-node quantum network of remote solid-state qubits
• How to Enhance Dephasing Time in Superconducting Qubits
• Silicon-Vacancy Spin Qubit in Diamond: A Quantum Memory Exceeding 10 ms with Single-Shot State Readout
• Detection and control of individual nuclear spins using a weakly coupled electron spin
• Electron spin decoherence of single Nitrogen-Vacancy defects in diamond
• Exact Results on Dynamical Decoupling by $\pi$-Pulses in Quantum Information Processes
• Quantum many-body theory for electron spin decoherence in nanoscale nuclear spin baths
• Quantum Decoherence of the Central Spin in a Sparse System of Dipolar Coupled Spins
• Robust Quantum Memory in a Trapped-Ion Quantum Network Node
• Modular chip-integrated photonic control of artificial atoms in diamond nanostructures
• The impact of microwave phase noise on diamond quantum sensing