Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,694
This Month
1,159
Today
0
Research Volume
13,008 papers in 12 months (-3% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Scrambling-induced entanglement suppression in noisy quantum circuits
Lea Haas, Christian Carisch, O. Zilberberg·Aug 5, 2024
Quantum information scrambling is a process happening during thermalization in quantum systems and describes the delocalization of quantum information. It is closely tied to entanglement, a key resource for quantum technologies and an order parameter...
Approximating under the Influence of Quantum Noise and Compute Power
Simon Thelen, Hila Safi, Wolfgang Mauerer·Aug 5, 2024
The quantum approximate optimisation algorithm (QAOA) and its variants are at the core of many scenarios that aim at combining the power of quantum computers (QC) and classical high-performance computing (HPC) appliances for combinatorial optimisatio...
Using detector likelihood for benchmarking quantum error correction
Ian Hesner, Bence Het'enyi, James R. Wootton·Aug 4, 2024
The behavior of real quantum hardware differs strongly from the simple error models typically used when simulating quantum error correction. Error processes are far more complex than simple depolarizing noise applied to single gates, and error rates ...
Quantum Algorithms for the Variational Optimization of Correlated Electronic States with Stochastic Reconfiguration and the Linear Method.
Mario Motta, Kevin J Sung, J. Shee·Aug 3, 2024
Solving the electronic Schrodinger equation for strongly correlated ground states is a long-standing challenge. We present quantum algorithms for the variational optimization of wave functions correlated by products of unitary operators, such as Loca...
Quantum noise modeling through Reinforcement Learning
Simone Bordoni, Andrea Papaluca, Piergiorgio Buttarini +3 more·Aug 2, 2024
In the current era of quantum computing, robust and efficient tools are essential to bridge the gap between simulations and quantum hardware execution. In this work, we introduce a machine learning approach to characterize the noise impacting a quant...
Radiofrequency cascade readout of coupled spin qubits
Jacob F. Chittock-Wood, Ross C. C. Leon, Michael A. Fogarty +12 more·Aug 2, 2024
Silicon spin qubits based on metal-oxide-semiconductor (MOS) technology are compatible with semiconductor manufacturing and offer a route to scalable quantum processing. However, spin readout typically relies on proximal charge sensors, which add arc...
Certifiably Robust Encoding Schemes
Aman Saxena, Tom Wollschlager, Nicola Franco +2 more·Aug 2, 2024
Quantum machine learning uses principles from quantum mechanics to process data, offering potential advances in speed and performance. However, previous work has shown that these models are susceptible to attacks that manipulate input data or exploit...
Generalised Circuit Partitioning for Distributed Quantum Computing
Felix Burt, Kuan-Cheng Chen, Kin K. Leung·Aug 2, 2024
Distributed quantum computing (DQC) is a new paradigm aimed at scaling up quantum computing via the interconnection of smaller quantum processing units (QPUs). Shared entanglement allows teleportation of both states and gates between QPUs. This leads...
Error Correction of Transversal cnot Gates for Scalable Surface-Code Computation
K. Sahay, Yingjia Lin, Shilin Huang +2 more·Aug 2, 2024
Recent experimental advances have made it possible to implement logical multiqubit transversal gates on surface codes in a multitude of platforms. A transversal controlled- (t) gate on two surface codes introduces correlated errors across the code bl...
Long-lived metastable-qubit memory
Xiaoyang Shi, Jasmine Sinanan-Singh, Kyle DeBry +3 more·Aug 2, 2024
Coherent storage of quantum information is crucial to many quantum technologies. Long coherence times have been demonstrated in trapped-ion qubits, typically using the hyperfine levels within the ground state of a single ion. However, recent research...
Optimizing quantum error correction protocols with erasure qubits
Shouzhen Gu, Yotam Vaknin, Alex Retzker +1 more·Aug 1, 2024
Erasure qubits offer a promising avenue toward reducing the overhead of quantum error correction (QEC) protocols. However, they require additional operations, such as erasure checks, that may add extra noise and increase runtime of QEC protocols. To ...
Optimally robust shortcuts to population inversion in cat-state qubits
Shao-Wei Xu, Zhong-Zheng Zhang, Yue-Ying Guo +2 more·Aug 1, 2024
Cat-state qubits formed by photonic coherent states are a promising candidate for realizing fault-tolerant quantum computing. Such logic qubits have a biased noise channel that the bit-flip error dominates over all the other errors. In this manuscrip...
A Search for High-Threshold Qutrit Magic State Distillation Routines
Shiroman Prakash, Rishabh Singhal·Aug 1, 2024
Determining the best attainable threshold for qudit magic state distillation is directly related to the question of whether or not contextuality is sufficient for universal quantum computation. We show that the performance of a qudit correcting code ...
Scaling and Assigning Resources on ION Trap QCCD Architectures
Anabel Ovide, Daniele Cuomo, C. G. Almudéver·Aug 1, 2024
Ion trap technologies have earned significant attention as potential candidates for quantum information processing due to their long decoherence times and precise manipulation of individual qubits, distinguishing them from other candidates in the fie...
Surface Code with Imperfect Erasure Checks
Kathleen M. Chang, Shraddha Singh, J. Claes +3 more·Aug 1, 2024
Recently, a lot of effort has been devoted towards designing erasure qubits in which dominant physical noise excites leakage states whose population can be detected and returned to the qubit subspace. Interest in these erasure qubits has been driven ...
To reset, or not to reset—that is the question
G. Geh'er, Marcin Jastrzębski, Earl T. Campbell +1 more·Aug 1, 2024
Whether to reset qubits, or not, during quantum error correction experiments is a question of both foundational and practical importance for quantum computing. Text-book quantum error correction demands that qubits are reset after measurement. Howeve...
Multi-controlled single-qubit unitary gates based on the quantum Fourier transform and deep decomposition
V. Arsoski·Aug 1, 2024
We will present a few new generalizations of the multi-controlled X (MCX) gate that uses the quantum Fourier transform (QFT). Our focus is on implementations that don’t use ancilla qubits. Firstly, we will optimize QFT-MCX and prove that it is equiva...
End-to-End Protocol for High-Quality QAOA Parameters with Few Shots
Tianyi Hao, Zichang He, R. Shaydulin +2 more·Aug 1, 2024
The quantum approximate optimization algorithm (QAOA) is a quantum heuristic for combinatorial optimization that has been demonstrated to scale better than state-of-the-art classical solvers for some problems. For a given problem instance, QAOA perfo...
An Open-Source Library for Information Reconciliation in Continuous-Variable QKD
E. Cil, Laurent Schmalen·Aug 1, 2024
This paper presents an easy-to-use open-source software library for continuous-variable quantum key distribution (CV-QKD) systems. The library, written in C++, simplifies the crucial task of information reconciliation, ensuring that both communicatin...
Demonstrating the Potential of Adaptive LMS Filtering on FPGA-Based Qubit Control Platforms for Improved Qubit Readout in 2D and 3D Quantum Processing Units
Hans Johnson, N. Bornman, Taeyoon Kim +3 more·Aug 1, 2024
Advancements in quantum computing underscore the critical need for sophisticated qubit readout techniques to accurately discern quantum states. This abstract presents our research intended for optimizing readout pulse fidelity for 2D and 3D Quantum P...