Optimizing the Electrical Interface for Large-Scale Color-Center Quantum Processors
arXiv:2403.09526 · doi:10.1109/TQE.2024.3416836
Abstract
Quantum processors based on color centers in diamond are promising candidates for future large-scale quantum computers thanks to their flexible optical interface, (relatively) high operating temperature, and high-fidelity operation. Similar to other quantum-computing platforms, the electrical interface required to control and read out such qubits may limit both the performance of the whole system and its scalability. To address this challenge, this work analyzes the requirements of the electrical interface and investigates how to efficiently implement the electronic controller in a scalable architecture comprising a large number of identical unit cells. Among the different discussed functionalities, a specific focus is devoted to the generation of the static and dynamic magnetic fields driving the electron and nuclear spins, because of their major impact on fidelity and scalability. Following the derived requirements, different system architectures, such as a qubit frequency-multiplexing scheme, are considered to identify the most power efficient approach, especially in the presence of inhomogeneity of the qubit Larmor frequency across the processor. As a result, a non-frequency-multiplexed, 1-mm unit-cell architecture is proposed as the optimal solution, able to address up to one electron-spin qubit and 9 nuclear-spin qubits within a 3-mW average power consumption, thus establishing the baseline for the scalable electrical interface for future large-scale color-center quantum computers.
arXiv comment20 pages, 10 figures; Revision 21-03-2024: Corrected affiliation, corrected typo Fig. 2, corrected DC noise PSD value (Z-field noise, X/Y-field noise) in Tab.1
References in corpus (38)
- Supplementary information for "Quantum supremacy using a programmable superconducting processor"
- Surface codes: Towards practical large-scale quantum computation
- The nitrogen-vacancy colour centre in diamond
- Experimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km
- Quantum Chemistry in the Age of Quantum Computing
- NMR Techniques for Quantum Control and Computation
- Heralded entanglement between solid-state qubits separated by 3 meters
- Universal dynamical decoupling of a single solid-state spin from a spin bath
- Realization of a multi-node quantum network of remote solid-state qubits
- The nitrogen-vacancy center in diamond re-visited
- Indistinguishable photons from separated silicon-vacancy centers in diamond
- Silicon-Vacancy Spin Qubit in Diamond: A Quantum Memory Exceeding 10 ms with Single-Shot State Readout
- A 10-qubit solid-state spin register with quantum memory up to one minute
- Universal control and error correction in multi-qubit spin registers in diamond
- Qubit teleportation between non-neighboring nodes in a quantum network
- Tin-Vacancy Quantum Emitters in Diamond
- One-second coherence for a single electron spin coupled to a multi-qubit nuclear-spin environment
- Quantum networks based on color centers in diamond
- Quantum network nodes based on diamond qubits with an efficient nanophotonic interface
- Detecting Infrared Single Photons with Near-Unity System Detection Efficiency
- {\emph{Ab initio} magneto-optical spectrum of Group-IV -- Vacancy color centers in diamond
- Transform-limited photons from a coherent tin-vacancy spin in diamond
- Pulsed polarisation for robust DNP
- Quantum many-body theory for electron spin decoherence in nanoscale nuclear spin baths
- Spin Readout Techniques of the Nitrogen-Vacancy Center in Diamond
- Arbitrary quantum control of qubits in the presence of universal noise
- Comparison of dynamical decoupling protocols for a nitrogen-vacancy center in diamond
- The impact of classical control electronics on qubit fidelity
- Initialization and Readout of Nuclear Spins via negatively charged Silicon-Vacancy Center in Diamond
- Quantum control of the tin-vacancy spin qubit in diamond
- Dephasing mechanisms of diamond-based nuclear-spin memories for quantum networks
- Generation of Tin-Vacancy Centers in Diamond via Shallow Ion Implantation and Subsequent Diamond Overgrowth
- Characterization of Optical and Spin Properties of Single Tin-Vacancy Centers in Diamond Nanopillars
- Coherence of a charge stabilised tin-vacancy spin in diamond
- Microwave Spin Control of a Tin-Vacancy Qubit in Diamond
- Multimode Fiber Coupled Superconducting Nanowire Single Photon Detectors with High Detection Efficiency and Time Resolution
- Active Quenching of Superconducting Nanowire Single Photon Detectors
- Optimizing the Electrical Interface for Large-Scale Color-Center Quantum Processors