Papers

T. Morimae, Yuki Shirakawa, Takashi Yamakawa·Oct 1, 2024

Quantum computational advantage refers to an existence of computational tasks that are easy for quantum computing but hard classically. Unconditionally showing quantum advantage is beyond our current understanding of complexity theory, and therefore ...

Ken M. Nakanishi, S. Todo·Oct 1, 2024

Multi-controlled Pauli gates are typical high-level qubit operations that appear in the quantum circuits of various quantum algorithms. We find multi-controlled Pauli gate decompositions with smaller CNOT-count or $T$-depth while keeping the currentl...

M. Song, Z. Zeng, Ting-Tung Wang +3 more·Oct 1, 2024

We investigate operator dynamics and entanglement growth in dual-unitary circuits, a class of locally scrambled quantum systems that enables efficient simulation beyond the exponential complexity of the Hilbert space. By mapping the operator evolutio...

T. C. Ralph, M. Winnel, S. Swain +1 more·Oct 1, 2024

The choice between the Schrödinger and Heisenberg pictures can significantly impact the computational resources needed to solve a problem, even though they are equivalent formulations of quantum mechanics. Here, we present a method for analysing Boso...

Zachary E. Chin, Isaac L. Chuang·Oct 1, 2024

The quantum trajectory sensing problem seeks quantum sensor states which enable the trajectories of incident particles to be distinguished using a single measurement. For an $n$-qubit sensor state to unambiguously discriminate a set of trajectories w...

Matteo Paltenghi, Michael Pradel·Oct 1, 2024

Quantum computing is getting increasing interest from both academia and industry, and the quantum software landscape has been growing rapidly. The quantum software stack comprises quantum programs, implementing algorithms, and platforms like IBM Qisk...

Sourav Dutta, Aditya Jain, Prabha Mandayam·Sep 30, 2024

We describe the smallest quantum error correcting (QEC) code to correct for amplitude-damping (AD) noise, namely, a 3-qubit code that corrects all the single-qubit damping errors. We generalize this construction to a family of codes that correct AD n...

Z.Y. Ni, Yusheng Zhao, Jin-Guo Liu·Sep 30, 2024

This study presents a roadmap towards utilizing a single arbitrary gate for universal quantum computing. Since two decades ago, it has been widely accepted that almost any single arbitrary gate with qubit number $>2$ is universal. Utilizing a single ...

Victor Yon, Bastien Galaup, C. Rohrbacher +11 more·Sep 30, 2024

Spin-based semiconductor qubits hold promise for scalable quantum computing, yet they require reliable autonomous calibration procedures. This study presents an experimental demonstration of online single-dot charge autotuning using a convolutional n...

Qianke Wang, Dawei Lyu, Jun Liu +1 more·Sep 30, 2024

Controlled quantum gates play a crucial role in enabling quantum universal operations by facilitating interactions between qubits. Direct implementation of three-qubit gates simplifies the design of quantum circuits, thereby being conducive to perfor...

Andrea Pasquale, Edoardo Pedicillo, Juan Cereijo +16 more·Sep 30, 2024

Calibration of quantum devices is fundamental to successfully deploy quantum algorithms on current available quantum hardware. We present Qibocal, an open-source software library to perform calibration and characterization of superconducting quantum ...

Tomoya Hayata, Yoshimasa Hidaka·Sep 30, 2024

We simulate Floquet time-evolution of a truncated SU(3) lattice Yang-Mills theory on a two-leg ladder geometry under open boundary conditions using IBM's superconducting 156-qubit device ibm\_fez. To this end, we derive the quantum spin representatio...

Nathan Claudet, S. Perdrix·Sep 30, 2024

Stabilizer states form a ubiquitous family of quantum states that can be graphically represented through the graph state formalism. A fundamental property of graph states is that applying a local complementation - a well-known and extensively studied...

Keren Li, Yuanfeng Wang, Pan Gao +1 more·Sep 30, 2024

Parameterized quantum circuits (PQCs) are crucial for quantum machine learning and circuit synthesis, enabling the practical implementation of complex quantum tasks. However, PQC learning has been largely confined to classical optimization methods, w...

Guangsheng Ma, Hongbo Li·Sep 30, 2024

Classical privacy-preserving computation techniques safeguard sensitive data in cloud computing, but often suffer from low computational efficiency. In this paper, we show that employing a single quantum server can significantly enhance both the effi...

Siyue Huang, Lifeng Wang, Xin Wang +3 more·Sep 30, 2024

This letter exploits the potential of edge intelligence empowered satellite-terrestrial networks, where users’ computation tasks are offloaded to the satellites or terrestrial base stations. The computation task offloading in such networks involves t...

Benedikt Poggel, Xiomara Runge, Adelina Barligea +1 more·Sep 30, 2024

When trying to use quantum-enhanced methods for optimization problems, the sheer number of options inhibits its adoption by industrial end users. Expert knowledge is required for the formulation and encoding of the use case, the selection and adaptat...

Samuel Moukouri·Sep 29, 2024

Entanglement plays a central role in the fundamental tests and practical applications of quantum mechanics. Because entanglement is a feature unique to quantum systems, its observations provide evidence of quantumness. Hence, if gravity can generate ...

Daniel Silver, Tirthak Patel, Devesh Tiwari·Sep 29, 2024

As quantum computing architecture matures, it is important to investigate new technologies that lend unique advantages. In this work, we propose, Qompose, a neutral atom quantum computing framework for efficiently composing quantum circuits on 2-D to...

M. AbuGhanem·Sep 29, 2024

In recent years, quantum computing has made significant strides, particularly in light-based technology. The introduction of quantum photonic chips has ushered in an era marked by scalability, stability, and cost-effectiveness, paving the way for inn...