Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,014 papers in 12 months (-3% 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
Quantum Trojan Insertion: Controlled Activation for Covert Circuit Manipulation
Jayden John, Lakshman Golla, Qian Wang·Feb 13, 2025
Quantum computing has demonstrated superior efficiency compared to classical computing. Quantum circuits are essential for implementing functions and achieving correct computational outcomes. Quantum circuit compilers, which translate high-level quan...
Assessing Quantum Layout Synthesis Tools via Known Optimal-SWAP Cost Benchmarks
Shuohao Ping, Wan-Hsuan Lin, Daniel Bochen Tan +1 more·Feb 12, 2025
Quantum layout synthesis (QLS) is a critical step in quantum program compilation for superconducting quantum computers, involving the insertion of SWAP gates to satisfy hardware connectivity constraints. While previous works have introduced SWAP-free...
Computing Efficiently in QLDPC Codes
Alexander J. Malcolm, Andrew N. Glaudell, Patricio Fuentes +10 more·Feb 11, 2025
It is the prevailing belief that quantum error correcting techniques will be required to build a utility-scale quantum computer able to perform computations that are out of reach of classical computers. The QECCs that have been most extensively studi...
An Efficient Iterative Algorithm for Qubit Mapping Via Layer‐Weight Assignment and Search Space Reduction
Kang Xu, Zeyang Li, Xinjian Liu +2 more·Feb 11, 2025
Current quantum devices support interactions only between physically adjacent qubits, preventing quantum circuits from being directly executed on these devices. Therefore, SWAP gates are required to remap logical qubits to physical qubits, which in t...
Heisenberg-limited calibration of entangling gates with robust phase estimation
K. Rudinger, J. P. Marceaux, A. Hashim +3 more·Feb 10, 2025
The calibration of high-quality two-qubit entangling gates is an essential component in engineering large-scale, fault-tolerant quantum computers. However, many standard calibration techniques are based on randomized circuits that are only quadratica...
Joint Cutting for Hybrid Schrödinger-Feynman Simulation of Quantum Circuits
Laura S. Herzog, Lukas Burgholzer, Christian Ufrecht +2 more·Feb 10, 2025
Despite the continuous advancements in size and robustness of real quantum devices, reliable large-scale quantum computers are not yet available. Hence, classical simulation of quantum algorithms remains crucial for testing new methods and estimating...
Evaluating the performance of quantum processing units at large width and depth
J. A. Montañez-Barrera, K. Michielsen, David E. Bernal Neira·Feb 10, 2025
Quantum computers have now surpassed classical simulation limits, yet noise continues to limit their practical utility. As the field shifts from proof-of-principle demonstrations to early deployments, there is no standard method for meaningfully and ...
Currency Arbitrage Optimization using Quantum Annealing, QAOA and Constraint Mapping
Sangram Deshpande, Elin Ranjan Das, F. Mueller·Feb 8, 2025
Currency arbitrage capitalizes on price discrepancies in currency exchange rates between markets to produce profits with minimal risk. By employing a combinatorial optimization problem, one can ascertain optimal paths within directed graphs, thereby ...
Classical post-processing approach for quantum amplitude estimation
Yongdan Yang, Ruyu Yang·Feb 8, 2025
We propose an approach for quantum amplitude estimation (QAE) designed to enhance computational efficiency while minimizing the reliance on quantum resources. Our method leverages quantum computers to generate a sequence of signals, from which the qu...
Programming optical-lattice Fermi-Hubbard quantum simulators
C. Tabares, Christian Kokail, Peter Zoller +2 more·Feb 7, 2025
Fermionic atoms in optical lattices provide a native implementation of Fermi-Hubbard (FH) models that can be used as analog quantum simulators of many-body fermionic systems. Recent experimental advances include the time-dependent local control of ch...
Gate teleportation-assisted routing for quantum algorithms
Aravind Plathanam Babu, Oskari Kerppo, A. Muñoz-Moller +2 more·Feb 6, 2025
The limited qubit connectivity of quantum processors poses a significant challenge in deploying practical algorithms and logical gates, necessitating efficient qubit mapping and routing strategies. When implementing a gate that requires additional co...
Improving and benchmarking NISQ qubit routers
Vicente Pina-Canelles, Adrian Auer, In'es de Vega·Feb 6, 2025
Quantum computers with a limited qubit connectivity require inserting SWAP gates for qubit routing, which increases gate execution errors and the impact of environmental noise due to an overhead in circuit depth. In this work, we benchmark various ro...
Quantum Circuit Design using a Progressive Widening Enhanced Monte Carlo Tree Search
Vincenzo Lipardi, D. Dibenedetto, Georgios Stamoulis +1 more·Feb 6, 2025
The performance of Variational Quantum Algorithms (VQAs) strongly depends on the choice of the parameterized quantum circuit to optimize. One of the biggest challenges in VQAs is designing quantum circuits tailored to the particular problem. This art...
Efficient Lindblad synthesis for noise model construction
Moein Malekakhlagh, A. Seif, D. Puzzuoli +2 more·Feb 5, 2025
Effective noise models are essential for analyzing and understanding the dynamics of quantum systems, particularly in applications like quantum error mitigation and correction. However, even when noise processes are well-characterized in isolation, t...
High-fidelity initialization of a logical qubit with multiple injections
Zhi-cheng He, Zheng-Yuan Xue·Feb 5, 2025
Quantum error correction represents a significant advancement in large-scale quantum computing. However, achieving fault-tolerant implementations of non-Clifford logical gates with reduced overhead remains a challenge in the popular surface code stra...
Unlocking the power of global quantum gates with machine learning
Vinit Singh, Bin Yan·Feb 4, 2025
In conventional circuit-based quantum computing architectures, the standard gate set includes arbitrary single-qubit rotations and two-qubit entangling gates. This choice is not always aligned with the native operations available in certain hardware,...
PALQA: A Novel Parameterized Position-Aware Lossy Quantum Autoencoder using LSB Control Qubit for Efficient Image Compression
Md. Ershadul Haque, Manoranjan Paul, Faranak Tohidi +2 more·Feb 4, 2025
With the growing interest in quantum computing, quantum image processing technology has become a vital research field due to its versatile applications and ability to outperform classical computing. A quantum autoencoder approach has been used for co...
Near-deterministic photon entanglement from a spin qudit in silicon using third quantisation
Gözde Üstün, Samuel Elman, Jarryd J. Pla +3 more·Feb 3, 2025
Unlike other quantum hardware, photonic quantum architectures can produce millions of qubits from a single device. However, controlling photonic qubits remains challenging, even at small scales, due to their weak interactions, making non-deterministi...
Postselection-free experimental observation of the measurement-induced phase transition in circuits with universal gates
Xiaozhou Feng, Jeremy Cot'e, S. Kourtis +1 more·Feb 3, 2025
Monitored many-body systems can exhibit a phase transition between entangling and disentangling dynamical phases by tuning the strength of measurements made on the system as it evolves. This phenomenon is called the measurement-induced phase transiti...
Quantum Codes with Addressable and Transversal Non-Clifford Gates
Zhiyang He, Vinod Vaikuntanathan, Adam Wills +1 more·Feb 3, 2025
The development of quantum codes with good error correction parameters and useful sets of transversal gates is a problem of major interest in quantum error-correction. Abundant prior works have studied transversal gates which are restricted to acting...