Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Fusion of deterministically generated photonic graph states
P. Thomas, L. Ruscio, O. Morin +1 more·Mar 18, 2024
Entanglement has evolved from an enigmatic concept of quantum physics to a key ingredient of quantum technology. It explains correlations between measurement outcomes that contradict classical physics and has been widely explored with small sets of i...
Optimizing the Electrical Interface for Large-Scale Color-Center Quantum Processors
L. Enthoven, M. Babaie, F. Sebastiano·Mar 14, 2024
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 ...
Distributed quantum architecture search
Haozhen Situ, Zhimin He, Shenggen Zheng +1 more·Mar 10, 2024
Variational quantum algorithms, inspired by neural networks, have become a novel approach in quantum computing. However, designing efficient parameterized quantum circuits remains a challenge. Quantum architecture search tackles this by adjusting cir...
Highly stable power control for chip-based continuous-variable quantum key distribution system.
Yiming Bian, Yang Li, Xuesong Xu +7 more·Mar 7, 2024
Quantum key distribution allows secret key generation with information theoretical security. It can be realized with photonic integrated circuits to benefit the tiny footprints and the large-scale manufacturing capacity. Continuous-variable quantum k...
Generation of true quantum random numbers with on-demand probability distributions via single-photon quantum walks.
Chao Meng, Miao Cai, Yufang Yang +7 more·Mar 5, 2024
Random numbers are at the heart of diverse fields, ranging from simulations of stochastic processes to classical and quantum cryptography. The requirement for true randomness in these applications has motivated various proposals for generating random...
High-rate 16-node quantum access network based on passive optical network
Ya Pan, Yiming Bian, Yang Li +12 more·Mar 5, 2024
Quantum key distribution can provide information-theoretical secure communication, which is now heading towards building the quantum secure network for real-world applications. In most built quantum secure networks, point-to-multipoint (PTMP) topolog...
Parametric multi-element coupling architecture for coherent and dissipative control of superconducting qubits
G. Huber, F. Roy, L. Koch +20 more·Mar 4, 2024
As systems for quantum computing keep growing in size and number of qubits, challenges in scaling the control capabilities are becoming increasingly relevant. Efficient schemes to simultaneously mediate coherent interactions between multiple quantum ...
Crosstalk-robust quantum control in multimode bosonic systems
Xinyuan You, Yunwei Lu, Taeyoon Kim +10 more·Mar 1, 2024
High-coherence superconducting cavities offer a hardware-efficient platform for quantum information processing. To achieve universal operations of these bosonic modes, the requisite nonlinearity is realized by coupling them to a transmon ancilla. How...
Quantum Bayesian Inference with Renormalization for Gravitational Waves
Gabriel Escrig, Roberto Campos, H. Qi +1 more·Feb 29, 2024
Advancements in gravitational-wave (GW) interferometers, particularly the next generation, are poised to enable the detections of orders of magnitude more GWs from compact binary coalescences. While the surge in detections will profoundly advance GW ...
Time series generation for option pricing on quantum computers using tensor network
Nozomu Kobayashi, Yoshiyuki Suimon, Koichi Miyamoto·Feb 27, 2024
Finance, especially option pricing, is a promising industrial field that might benefit from quantum computing. While quantum algorithms for option pricing have been proposed, it is desired to devise more efficient implementations of costly operations...
Acceptor-Induced Bulk Dielectric Loss in Superconducting Circuits on Silicon
Zi-Huai Zhang, Kadircan Godeneli, Justin He +4 more·Feb 27, 2024
The performance of superconducting quantum circuits is primarily limited by dielectric loss due to interactions with two-level systems (TLSs). State-of-the-art circuits with engineered material interfaces are approaching a limit where dielectric loss...
A quantum approach to synthetic minority oversampling technique (SMOTE)
Nishikanta Mohanty, B. Behera, Christopher Ferrie +1 more·Feb 27, 2024
The paper proposes the Quantum-SMOTE method, a novel solution that uses quantum computing techniques to solve the prevalent problem of class imbalance in machine learning datasets. Quantum-SMOTE, inspired by the Synthetic Minority Oversampling Techni...
Entanglement-breaking channels are a quantum memory resource
Lucas B. Vieira, Huan-Yu Ku, Costantino Budroni·Feb 26, 2024
Entanglement-breaking channels (equivalently, measure-and-prepare channels) are an important class of quantum operations noted for their ability to destroy multipartite spatial quantum correlations. Inspired by this property, they have also been empl...
Trapped ion qubit and clock operations with a visible wavelength photonic coil resonator stabilized integrated Brillouin laser
Nitesh Chauhan, Christopher Caron, Jiawei Wang +5 more·Feb 26, 2024
Integrating precise, stable, ultra-low noise visible light lasers into atomic systems is critical for advancing quantum information sciences and improving scalability and portability. Trapped ions are a leading approach for high-fidelity quantum comp...
Flying-cat parity checks for quantum error correction
Z. M. McIntyre, W. Coish·Feb 26, 2024
Long range, multiqubit parity checks have applications in both quantum error correction and measurement-based entanglement generation. Such parity checks could be performed using qubit-state-dependent phase shifts on propagating pulses of light descr...
Universal quantum operations and ancilla-based read-out for tweezer clocks
Ran Finkelstein, R. Tsai, Xiangkai Sun +6 more·Feb 25, 2024
Enhancing the precision of measurements by harnessing entanglement is a long-sought goal in quantum metrology1,2. Yet attaining the best sensitivity allowed by quantum theory in the presence of noise is an outstanding challenge, requiring optimal pro...
The simulation of distributed quantum algorithms
Sreraman Muralidharan·Feb 16, 2024
Distributed quantum computing (DQC) provides a way to scale quantum computers using multiple quantum processing units (QPU) connected through quantum communication links. In this paper, we have built a distributed quantum computing simulator and used...
Rapid on-demand generation of thermal states in superconducting quantum circuits
T. Mörstedt, Wallace S. Teixeira, A. Viitanen +13 more·Feb 14, 2024
We experimentally demonstrate the fast generation of thermal states of a transmon using a single-junction quantum-circuit refrigerator (QCR) as an tunable environment. Through single-shot readout, we monitor the transmon up to its third excited state...
Lattice Hamiltonians and stray interactions within quantum processors
Xuexin Xu, Manabputra, Chlo'e Vignes +2 more·Feb 14, 2024
Developing Hamiltonian models for quantum processors with many qubits on the same chip is crucial for advancing quantum computing technologies. Stray couplings between qubits lead to errors in gate operations. This study underscores the importance of...
Variational post-selection for ground states and thermal states simulation
Shi-Xin Zhang, Jiaqi Miao, Chang-Yu Hsieh·Feb 12, 2024
Variational quantum algorithms, as one of the most promising routes in the noisy intermediate-scale quantum era, offer various potential applications while also confronting severe challenges due to near-term quantum hardware restrictions. In this wor...