Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Global Synthesis of CNOT Circuits with Holes
Ewan Murphy, A. Kissinger·Aug 23, 2023
A common approach to quantum circuit transformation is to use the properties of a specific gate set to create an efficient representation of a given circuit's unitary, such as a parity matrix or stabiliser tableau, and then resynthesise an improved c...
Multi-sequence alignment using the Quantum Approximate Optimization Algorithm
Sebastian Yde Madsen, F. K. Marqversen, S. E. Rasmussen +1 more·Aug 23, 2023
The task of Multiple Sequence Alignment (MSA) is a constrained combinatorial optimization problem that is generally considered a complex computational problem. In this paper, we first present a binary encoding of MSA and devise a corresponding soft-c...
Highly 28Si enriched silicon by localised focused ion beam implantation
Ravi Acharya, Maddison Coke, Mason Adshead +10 more·Aug 23, 2023
Solid-state spin qubits within silicon crystals at mK temperatures show great promise in the realisation of a fully scalable quantum computation platform. Qubit coherence times are limited in natural silicon owing to coupling to the 29Si isotope whic...
Quantum‐Noise‐Driven Generative Diffusion Models
Marco Parigi, Stefano Martina, F. Caruso·Aug 23, 2023
Generative models realized with Machine Learning (ML) techniques are powerful tools to infer complex and unknown data distributions from a finite number of training samples in order to produce new synthetic data. Diffusion Models (DMs) are an emergin...
Cryogenic microwave link for quantum local area networks
M. Renger, S. Gandorfer, W. Yam +16 more·Aug 23, 2023
Scalable quantum information processing with superconducting circuits is expected to advance from individual processors located in single dilution refrigerators to more powerful distributed quantum computing systems. The realization of hardware platf...
Scalable Quantum Ground State Preparation of the Heisenberg Model: A Variational Quantum Eigensolver Approach
Jina Wang, Rimika Jaiswal·Aug 23, 2023
Quantum systems have historically been formidable to simulate using classical computational methods, particularly as the system size grows. In recent years, advancements in quantum computing technology have offered new opportunities for tackling comp...
Magnetic Skyrmion: From Fundamental Physics to Pioneering Applications
Kishan K. Mishra, Aijaz H. Lone, Srikant Srinivasan +2 more·Aug 22, 2023
Skyrmionic devices exhibit energy-efficient and high-integration data storage and computing capabilities due to their small size, topological protection, and low drive current requirements. So, to realize these devices, an extensive study, from funda...
Exploration of superconducting multi-mode cavity architectures for quantum computing
A. Reineri, S. Zorzetti, Tanay Roy +1 more·Aug 22, 2023
Superconducting radio-frequency (SRF) cavities coupled to transmon circuits have proven to be a promising platform for building high-coherence quantum information processors. An essential aspect of this realization involves designing high quality fac...
Development of a Novel Quantum Pre-processing Filter to Improve Image Classification Accuracy of Neural Network Models
Farina Riaz, Shahab A. Abdulla, Hajime Suzuki +3 more·Aug 22, 2023
This paper proposes a novel quantum pre-processing filter (QPF) to improve the image classification accuracy of neural network (NN) models. A simple four qubit quantum circuit that uses Y rotation gates for encoding and two controlled NOT gates for c...
Zero and Finite Temperature Quantum Simulations Powered by Quantum Magic
A. Gu, Hong-ye Hu, Di Luo +3 more·Aug 22, 2023
We introduce a quantum information theory-inspired method to improve the characterization of many-body Hamiltonians on near-term quantum devices. We design a new class of similarity transformations that, when applied as a preprocessing step, can subs...
Analysis and mitigation of residual exchange coupling in linear spin-qubit arrays
Irina Heinz, A. Mills, J. Petta +1 more·Aug 22, 2023
In recent advancements of quantum computing utilizing spin qubits, it has been demonstrated that this platform possesses the potential for implementing two-qubit gates with fidelities exceeding 99.5%. However, as with other qubit platforms, it is not...
Several fitness functions and entanglement gates in quantum kernel generation
Haiyan Wang·Aug 22, 2023
Quantum machine learning (QML) represents a promising frontier in the quantum technologies. In this pursuit of quantum advantage, the quantum kernel method for support vector machine has emerged as a powerful approach. Entanglement, a fundamental con...
Quantum Circuits for Fixed Substring Matching Problems
Domenico Cantone, S. Faro, Arianna Pavone +1 more·Aug 22, 2023
Quantum computation represents a computational paradigm whose distinctive attributes confer the ability to devise algorithms with asymptotic performance levels significantly superior to those achievable via classical computation. Recent strides have ...
Layering and subpool exploration for adaptive variational quantum eigensolvers: Reducing circuit depth, runtime, and susceptibility to noise
Christopher K. Long, K. Dalton, C. Barnes +2 more·Aug 22, 2023
Adaptive variational quantum eigensolvers (ADAPT-VQEs) are promising candidates for simulations of strongly correlated systems on near-term quantum hardware. To further improve the noise resilience of these algorithms, recent efforts have been direct...
Quantum Query Lower Bounds for Key Recovery Attacks on the Even-Mansour Cipher
Akinori Kawachi, Yūki Naito·Aug 21, 2023
The Even-Mansour (EM) cipher is one of the famous constructions for a block cipher. Kuwakado and Morii demonstrated that a quantum adversary can recover its $n$-bit secret keys only with $O(n)$ nonadaptive quantum queries. While the security of the E...
Beating one bit of communication with and without quantum pseudo-telepathy
Istv'an M'arton, E. Bene, P'eter Divi'anszky +1 more·Aug 21, 2023
According to Bell’s theorem, certain entangled states cannot be simulated classically using local hidden variables (LHV). Suppose that we can augment LHV by some amount of classical communication. The question then arises as to how many bits are need...
Phase-Sensitive Quantum Measurement without Controlled Operations.
Yi-Long Yang, Arthur Christianen, M. Bañuls +2 more·Aug 21, 2023
Many quantum algorithms rely on the measurement of complex quantum amplitudes. Standard approaches to obtain the phase information, such as the Hadamard test, give rise to large overheads due to the need for global controlled-unitary operations. We i...
SCC5G: A PQC-Based Architecture for Highly Secure Critical Communication Over Cellular Network in Zero-Trust Environment
Mohammed Gharib, Fatemeh Afghah·Aug 21, 2023
5G made a significant jump in cellular network security by offering enhanced subscriber identity protection and a user-network mutual authentication implementation. However, it still does not fully follow the zero-trust (ZT) requirements, as users ne...
A Variational Qubit-Efficient MaxCut Heuristic Algorithm
Yovav Tene-Cohen, Tomer Kelman, Ohad Lev +1 more·Aug 20, 2023
MaxCut is a key NP-hard combinatorial optimization problem. Quantum computing offers methods to solve such problems potentially better than classical counterparts, with the Quantum Approximate Optimization Algorithm (QAOA) being a state-of-the-ar...
Qubits on programmable geometries with a trapped-ion quantum processor
Qiming Wu, Yue Shi, Jiehang Zhang·Aug 20, 2023
Geometry and dimensionality have played crucial roles in our understanding of the fundamental laws of nature, with examples ranging from curved space-time in general relativity to modern theories of quantum gravity. In quantum many-body systems, the ...