Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Testing Genuine Multipartite Nonlocality via an Inflated Network with Multi-copy Entangled States
Qian-Xi Zhang, Ming-Xing Luo, Ya-Li Mao +6 more·Mar 27, 2023
Understanding the nonlocality of multipartite quantum systems provides valuable insights into their behaviors and potential applications. In this Letter, assuming a quantum network inflated with multiple copies of genuine multipartite entangled state...
Hyperparameter optimization, quantum-assisted model performance prediction, and benchmarking of AI-based High Energy Physics workloads using HPC
Eric Wulff, M. Girone, D. Southwick +2 more·Mar 27, 2023
Training and Hyperparameter Optimization (HPO) of deep learning-based AI models are often compute resource intensive and calls for the use of large-scale distributed resources as well as scalable and resource efficient hyperparameter search algorithm...
Interpolation-based decoding of folded variants of linearized and skew Reed–Solomon codes
Felicitas Hörmann, H. Bartz·Mar 27, 2023
The sum-rank metric is a hybrid between the Hamming metric and the rank metric and suitable for error correction in multishot network coding and distributed storage as well as for the design of quantum-resistant cryptosystems. In this work, we consid...
Transversal diagonal logical operators for stabiliser codes
M. Webster, A. O. Quintavalle, S. Bartlett·Mar 27, 2023
Storing quantum information in a quantum error correction code can protect it from errors, but the ability to transform the stored quantum information in a fault tolerant way is equally important. Logical Pauli group operators can be implemented on C...
Quantum approximate optimization via learning-based adaptive optimization
Lixue Cheng, Yu-Qin Chen, Shi-Xin Zhang +1 more·Mar 27, 2023
There is no universal way of optimizing the variation quantum circuits used in Noisy Intermediate-Scale Quantum (NISQ) applications. In this paper the authors introduce a new classical Bayesian optimizer, which converges much more quickly than conven...
Multipartite entanglement and quantum error identification in D -dimensional cluster states
Sowrabh Sudevan, Daniel Azses, Emanuele G. Dalla Torre +2 more·Mar 27, 2023
An entangled state is said to be $m$-uniform if the reduced density matrix of any $m$ qubits is maximally mixed. This is intimately linked to pure quantum error correction codes (QECCs), which allow not only to correct errors, but also to identify th...
A framework for demonstrating practical quantum advantage: comparing quantum against classical generative models
Mohamed Hibat-Allah, M. Mauri, Juan Carrasquilla +1 more·Mar 27, 2023
Generative modeling has seen a rising interest in both classical and quantum machine learning, and it represents a promising candidate to obtain a practical quantum advantage in the near term. In this study, we build over an existing framework for ev...
Is there a Moore's law for quantum computing?
Olivier Ezratty·Mar 27, 2023
There is a common wisdom according to which many technologies can progress according to some exponential law like the empirical Moore's law that was validated for over half a century with the growth of transistors number in chipsets. As a still in th...
All-photonic Gottesman-Kitaev-Preskill–qubit repeater using analog-information-assisted multiplexed entanglement ranking
F. Rozpędek, K. Seshadreesan, P. Polakos +2 more·Mar 27, 2023
Long distance quantum communication will require the use of quantum repeaters to overcome the exponential attenuation of signal with distance. One class of such repeaters utilizes quantum error correction to overcome losses in the communication chann...
Bounds to electron spin qubit variability for scalable CMOS architectures
J. D. Cifuentes, T. Tanttu, W. Gilbert +21 more·Mar 27, 2023
Spins of electrons in silicon MOS quantum dots combine exquisite quantum properties and scalable fabrication. In the age of quantum technology, however, the metrics that crowned Si/SiO2 as the microelectronics standard need to be reassessed with resp...
Cascaded variational quantum eigensolver algorithm
D. Gunlycke, C. Hellberg, John P. T. Stenger·Mar 27, 2023
We present a cascaded variational quantum eigensolver algorithm that only requires the execution of a set of quantum circuits once rather than at every iteration during the parameter optimization process, thereby increasing the computational throughp...
Stable computation of entanglement entropy for two-dimensional interacting fermion systems
Gaopei Pan, Yuan Da Liao, Weilun Jiang +3 more·Mar 25, 2023
There is no doubt that the information hidden in entanglement entropy (EE), for example, the $n$-th order R\'enyi EE, i.e., $S^{A}_n=\frac{1}{1-n}\ln \Tr (\rho_A^n)$ where $\rho_A=\mathrm{Tr}_{\overline{A}}\rho$ is the reduced density matrix, can be ...
Cross-platform comparison of arbitrary quantum processes
Congcong Zheng, Xutao Yu, Kun Wang·Mar 24, 2023
In this work, we present a protocol for comparing the performance of arbitrary quantum processes executed on spatially or temporally disparate quantum platforms using Local Operations and Classical Communication (LOCC). The protocol involves sampling...
Decoding quantum color codes with MaxSAT
Lucas Berent, Lukas Burgholzer, P. H. Derks +2 more·Mar 24, 2023
In classical computing, error-correcting codes are well established and are ubiquitous both in theory and practical applications. For quantum computing, error-correction is essential as well, but harder to realize, coming along with substantial resou...
Scalable multi-chip quantum architectures enabled by cryogenic hybrid wireless/quantum-coherent network-in-package
Eduard Alarc'on, S. Abadal, F. Sebastiano +9 more·Mar 24, 2023
The grand challenge of scaling up quantum computers requires a full-stack architectural standpoint. In this position paper, we will present the vision of a new generation of scalable quantum computing architectures featuring distributed quantum cores...
Characterizing Crosstalk of Superconducting Transmon Processors
A. Ketterer, T. Wellens·Mar 24, 2023
Currently available quantum computing hardware based on superconducting transmon architectures realizes networks of hundreds of qubits with the possibility of controlled nearest-neighbor interactions. However, the inherent noise and decoherence effec...
Dead-time optimization to increase secure distance range in prepare and measure quantum key distribution protocols
C. Wiechers, J. Lucio, X. S'anchez-Lozano +2 more·Mar 24, 2023
Afterpulsing is a factor limiting the distance over which discrete-variable quantum key distribution systems are secure, and a common feature in single-photon detectors. The relevance of this phenomenon stems from its stochastic, self-interacting nat...
Consistent Quantum Causes
R. Griffiths·Mar 23, 2023
Developing a quantum analog of the modern classical theory of causation, as formulated by Pearl and others using directed acyclic graphs, requires a theory of random or stochastic time development at the microscopic level, where the noncommutation of...
Quantum search in a non-Markovian environment
Sheikh Parvez Mandal·Mar 23, 2023
This MS thesis explores the effects and origins of a 'noise with memory' in the dynamics of an open quantum system. The system considered here is a multi-qubit register performing the Grover's quantum search algorithm. We show that a Markovian-correl...
Particle track reconstruction with noisy intermediate-scale quantum computers
Tim Schwagerl, C. Issever, K. Jansen +4 more·Mar 23, 2023
The reconstruction of trajectories of charged particles is a key computational challenge for current and future collider experiments. Considering the rapid progress in quantum computing, it is crucial to explore its potential for this and other probl...