Papers
Live trends in quantum computing research, updated daily from arXiv.
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15,244 papers in 12 months (-12% vs prior quarter)
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Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Hardware Trojans in Quantum Circuits, Their Impacts, and Defense
Rupshali Roy, Subrata Das, Swaroop Ghosh·Feb 2, 2024
The reliability of the outcome of a quantum circuit in near-term noisy quantum computers depends on the gate count and depth for a given problem. Circuits with a short depth and lower gate count can yield the correct solution more often than the vari...
Single-modulated-pulse two-qubit gates for Rydberg atoms with noncyclic geometric control
Zi-Yuan Chen, Jianwu Liang, Zhao-Xin Fu +7 more·Feb 2, 2024
Arrays of neutral atoms have emerged as promising platforms for quantum computing. Realization of high-fidelity two-qubit gates with robustness is currently a significant important task for large-scale operations. In this paper, we present a convenie...
The closed-branch decoder for quantum LDPC codes
Antonio deMarti iOlius, Josu Etxezarreta Martinez·Feb 2, 2024
Quantum error correction is the building block for constructing fault-tolerant quantum processors that can operate reliably even if its constituting elements are corrupted by decoherence. In this context, real-time decoding is a necessity for impleme...
Quantum Codes from Twisted Unitary t-Groups.
Eric Kubischta, Ian Teixeira·Feb 2, 2024
We introduce twisted unitary t-groups, a generalization of unitary t-groups under a twisting by an irreducible representation. We then apply representation theoretic methods to the Knill-Laflamme error correction conditions to show that twisted unita...
Qspecklefilter: A Quantum Machine Learning Approach for SAR Speckle Filtering
Francesco Mauro, A. Sebastianelli, M. P. D. Rosso +2 more·Feb 2, 2024
The use of Synthetic Aperture Radar (SAR) has greatly advanced our capacity for comprehensive Earth monitoring, providing detailed insights into terrestrial surface use and cover regardless of weather conditions, and at any time of day or night. Howe...
Efficient Implementation of Discrete-Time Quantum Walks on Quantum Computers
Luca Razzoli, Gabriele Cenedese, M. Bondani +1 more·Feb 2, 2024
Quantum walks have proven to be a universal model for quantum computation and to provide speed-up in certain quantum algorithms. The discrete-time quantum walk (DTQW) model, among others, is one of the most suitable candidates for circuit implementat...
Mitigating Errors on Superconducting Quantum Processors Through Fuzzy Clustering
H. G. Ahmad, Roberto Schiattarella, P. Mastrovito +10 more·Feb 2, 2024
Quantum utility is severely limited in superconducting quantum hardware until now by the modest number of qubits and the relatively high level of control and readout errors, due to the intentional coupling with the external environment required for m...
Big data applications on small quantum computers
Boniface Yogendran, Daniel C. Charlton, Miriam Beddig +2 more·Feb 2, 2024
Current quantum hardware prohibits any direct use of large classical datasets. Coresets allow for a succinct description of these large datasets and their solution in a computational task is competitive with the solution on the original dataset. The ...
Generalized Gibbs Ensemble from Eigenstate Entanglement Hamiltonian
Hao Chen, Biao Lian·Feb 1, 2024
Relaxed quantum systems with conservation laws are believed to be approximated by the Generalized Gibbs Ensemble (GGE), which incorporates the constraints of certain conserved quantities serving as integrals of motion. By drawing an analogy between e...
Useful entanglement can be extracted from noisy graph states
Konrad Szymański, Lina Vandré, Otfried Gühne·Feb 1, 2024
Cluster states and graph states in general offer a useful model of the stabilizer formalism and a path toward the development of measurement-based quantum computation. Their defining structure - the stabilizer group - encodes all possible correlation...
Relation between time- and spacelike entanglement entropy
Wu-zhong Guo, Song He, Yu-Xuan Zhang·Feb 1, 2024
In this study, we establish a connection between timelike and spacelike entanglement entropy. We show that timelike entanglement entropy is closely related to spacelike entanglement entropy and its temporal derivative. For a broad class of states, it...
Enhanced quantum state transfer by circumventing quantum chaotic behavior
Liang Xiang, Jiachen Chen, Zitian Zhu +16 more·Feb 1, 2024
The ability to realize high-fidelity quantum communication is one of the many facets required to build generic quantum computing devices. In addition to quantum processing, sensing, and storage, transferring the resulting quantum states demands a car...
Resource-efficient loss-aware photonic graph state preparation using atomic emitters
Eneet Kaur, A. Patil, Saikat Guha·Feb 1, 2024
Multi-qubit entangled photonic graph states are an important ingredient for all-photonic quantum computing, repeaters and networking. Preparing them using probabilistic stitching of single photons using linear optics presents a formidable resource ch...
Spatio-Temporal Characterization of Qubit Routing in Connectivity-Constrained Quantum Processors
Sahar Ben Rached, C. G. Almudéver, E. Alarcon +1 more·Feb 1, 2024
Designing efficient quantum processor topologies is pivotal for advancing scalable quantum computing architectures. The communication overhead, a critical factor affecting the execution fidelity of quantum circuits, arises from inevitable qubit routi...
Scattering wave packets of hadrons in gauge theories: Preparation on a quantum computer
Z. Davoudi, Chung-Chun Hsieh, Saurabh V. Kadam·Feb 1, 2024
Quantum simulation holds promise of enabling a complete description of high-energy scattering processes rooted in gauge theories of the Standard Model. A first step in such simulations is preparation of interacting hadronic wave packets. To create th...
Lightcone bounds for quantum circuit mapping via uncomplexity
M. Steinberg, Medina Bandic, Sacha Szkudlarek +3 more·Feb 1, 2024
Efficiently mapping quantum circuits onto hardware is integral for the quantum compilation process, wherein a circuit is modified in accordance with a quantum processor’s connectivity. Many techniques currently exist for solving this problem, wherein...
Benchmarking Multipartite Entanglement Generation with Graph States
René Zander, Colin Kai-Uwe Becker·Feb 1, 2024
As quantum computing technology slowly matures and the number of available qubits on a QPU gradually increases, interest in assessing the capabilities of quantum computing hardware in a scalable manner is growing. One of the key properties for quantu...
System characterization of dispersive readout in superconducting qubits
D. Sank, A. Opremcak, A. Bengtsson +4 more·Feb 1, 2024
Designing quantum systems with the measurement speed and accuracy needed for quantum error correction using superconducting qubits requires iterative design and testing informed by accurate models and characterization tools. We introduce a single pro...
Oracle separation of QMA and QCMA with bounded adaptivity
S. Ben-David, Srijita Kundu·Feb 1, 2024
We give an oracle separation between QMA and QCMA for quantum algorithms that have bounded adaptivity in their oracle queries; that is, the number of rounds of oracle calls is small, though each round may involve polynomially many queries in parallel...
A study of chaos and randomness in quantum systems
PG Sreeram·Feb 1, 2024
How classical chaos emerges from the underlying quantum world is a fundamental problem in physics. The origin of this question is in the correspondence principle. Classical chaos arises due to non-linear dynamics, whereas quantum mechanics, driven by...