Optical single-shot readout of spin qubits in silicon

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 2, 2025

Abstract Small registers of spin qubits in silicon can exhibit hour-long coherence times and exceeded error-correction thresholds. However, their connection to larger quantum processors is an outstanding challenge. To this end, with optical interfaces offer key advantages: they minimize the heat load give access modular computing architectures that eliminate cross-talk a large connectivity. Here, we implement such efficient spin-photon interface based on erbium dopants nanophotonic resonator. We demonstrate single-shot readout whose exceeds Purcell-enhanced lifetime, paving way for entangling remote spins via photon interference. As emit coherent photons minimal-loss band fibers, tens be spectrally multiplexed each resonator, demonstrated hardware platform offers unique promise distributed information processing scalable, integrated devices.

Language: Английский

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Electrical manipulation of telecom color centers in silicon

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 3, 2024

Abstract Silicon color centers have recently emerged as promising candidates for commercial quantum technology, yet their interaction with electric fields has to be investigated. In this paper, we demonstrate electrical manipulation of telecom silicon by implementing novel lateral diodes an integrated G center ensemble in a on insulator wafer. The optical response is characterized under application reverse-biased DC field, observing both 100% modulation fluorescence signal, and wavelength redshift approximately 1.24 ± 0.08 GHz/V above threshold voltage. Finally, use directly image the field distribution within devices, obtaining insight into spatial voltage-dependent variation junction depletion region associated mediating effects ensemble. Strong correlation between emitter-field coupling generated photocurrent observed. Our demonstration enables control stabilization semiconductor emitters.

Language: Английский

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Quantum natural language processing and its applications in bioinformatics: a comprehensive review of methodologies, concepts, and future directions

Frontiers in Computer Science, Journal Year: 2025, Volume and Issue: 7

Published: Feb. 18, 2025

Quantum Natural Language Processing (QNLP) is a relatively new subfield of research that extends the application principles natural language processing and quantum computing has enabled complex biological information to unprecedented levels. The present comprehensive review analyses potential QNLP in influencing many branches bioinformatics such as genomic sequence analysis, protein structure prediction, drug discovery design. To establish correct background techniques, this article going explore basics including qubits, entanglement, algorithms. next section devoted extraction material valuable knowledge related development, prediction assessment drug-target interactions. In addition, paper also explains structural by embedding, simulation, optimization for exploring sequence-structure relationship. However, study acknowledges future discussion challenges weaknesses hardware, data representation, encoding, construction enhancement This looks into real-life problems solved from industry applications, benchmarking criteria, comparison with other traditional NLP methods. Therefore, enunciates perspectives, well developmental implementation blueprint bioinformatics. plan follows: its function achieve objectives precision medicine, design, multi-omics, green chemistry.

Language: Английский

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Colloquium : Decoherence of solid-state spin qubits: A computational perspective

Reviews of Modern Physics, Journal Year: 2025, Volume and Issue: 97(2)

Published: April 4, 2025

Language: Английский

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Silicon carbide photonics technologies and fabrication methods

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 325 - 349

Published: Jan. 1, 2025

Language: Английский

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Large-range tuning and stabilization of the optical transition of diamond tin-vacancy centers by in situ strain control

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(17)

Published: April 28, 2025

The negatively charged tin-vacancy (SnV−) center in diamond has emerged as a promising platform for quantum computing and networks. To connect SnV− qubits large networks, situ tuning stabilization of their optical transitions are essential to overcome static dynamic frequency offsets induced by the local environment. Here, we report on large-range centers using micro-electro-mechanically mediated strain control photonic integrated waveguide devices. We realize range >40 GHz, covering major part inhomogeneous distribution. In addition, employ real-time feedback environment stabilize resonance mitigate spectral wandering. These results provide path on-chip scaling SnV-based

Language: Английский

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Solid-state single-photon sources operating in the telecom wavelength range

Nanophotonics, Journal Year: 2025, Volume and Issue: unknown

Published: May 5, 2025

Abstract Solid-state quantum emitters operating in the telecom wavelength range are pivotal for development of scalable information processing technologies. In this review, we provide a comprehensive overview state-of-the-art solid-state single photons targeting discrete-variable regime and range. We focus on dots, color centers, erbium ion dopants, detailing their synthesis methods applications. The review addresses strategies integration these into photonic devices alongside associated challenges. also discuss applications technologies, examining current limitations, including performance constraints, decoherence, scalability. Finally, propose future directions advancing photonic-based

Language: Английский

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Efficient percolation simulations for lossy photonic fusion networks

Physical Review Research, Journal Year: 2024, Volume and Issue: 6(3)

Published: Sept. 10, 2024

The study of percolation phenomena has various applications ranging from social networks or materials science to quantum information. most common models are bond site for which the Newman-Ziff algorithm enables an efficient simulation. Here, we consider several nonstandard that appear in context measurement-based photonic computing with so-called graph states and fusion networks. associated thresholds determine tolerance photon loss such systems develop modifications efficiently perform corresponding simulations. We demonstrate our algorithms by using them characterize exemplary states. Published American Physical Society 2024

Language: Английский

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Computationally Driven Discovery of T Center-like Quantum Defects in Silicon

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(44), P. 30046 - 30056

Published: Oct. 28, 2024

Quantum technologies would benefit from the development of high-performance quantum defects acting as single-photon emitters or spin-photon interfaces. Finding such a defect in silicon is especially appealing view its favorable spin bath and high processability. While some color centers have been emerging applications, there remains need to search for develop new emitters. By searching high-throughput computational database more than 22,000 charged complex silicon, we identify series formed by group III element combined with carbon ((A-C)

Language: Английский

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Electrically driven and exponentially enhanced spin–photon interfaces for quantum networks

Quantum Information Processing, Journal Year: 2024, Volume and Issue: 23(12)

Published: Dec. 14, 2024

Language: Английский

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