Category: Paper

Simon Apers, Sander Gribling, Sayantan Sen, and Dániel Szabó,

Quantum 7, 1202 (2023).

We describe a simple algorithm for estimating the $k$-th normalized Betti number of a simplicial complex over $n$ elements using the path integral Monte Carlo method. For a general simplicial co…

Yiqiu Han and Xiao Chen,

Quantum 7, 1200 (2023).

We study the entanglement dynamics of quantum automaton (QA) circuits in the presence of U(1) symmetry. We find that the second Rényi entropy grows diffusively with a logarithmic correction…

Karol Łukanowski, Maria Balanzó-Juandó, Máté Farkas, Antonio Acín, and Jan Kołodyński,

Quantum 7, 1199 (2023).

The device-independent framework constitutes the most pragmatic approach to quantum protocols that does not put any trust in their implementations. It requires all claims, about e.g. securit…

Francois-Marie Le Régent, Camille Berdou, Zaki Leghtas, Jérémie Guillaud, and Mazyar Mirrahimi,

Quantum 7, 1198 (2023).

Bosonic cat qubits stabilized by two-photon driven dissipation benefit from exponential suppression of bit-flip errors and an extensive set of gates preserving this protection. These propert…

Emilio Onorati, Tamara Kohler, and Toby S. Cubitt,

Quantum 7, 1197 (2023).

The presence of noise is currently one of the main obstacles to achieving large-scale quantum computation. Strategies to characterise and understand noise processes in quantum hardware are a…

Jun-Yi Wu, Kosuke Matsui, Tim Forrer, Akihito Soeda, Pablo Andrés-Martínez, Daniel Mills, Luciana Henaut, and Mio Murao,

Quantum 7, 1196 (2023).

In noisy intermediate-scale quantum computing, the limited scalability of a single quantum processing unit (QPU) can be extended through distributed quantum computing (DQC), in which one can…

Arshag Danageozian,

Quantum 7, 1195 (2023).

The recovery of fragile quantum states from decoherence is the basis of building a quantum memory, with applications ranging from quantum communications to quantum computing. Many recovery t…

David Schmid, Thomas C. Fraser, Ravi Kunjwal, Ana Belen Sainz, Elie Wolfe, and Robert W. Spekkens,

Quantum 7, 1194 (2023).

A standard approach to quantifying resources is to determine which operations on the resources are freely available, and to deduce the partial order over resources that is induced by the rel…

Luca Chirolli, Matteo Carrega, and Francesco Giazotto,

Quantum 7, 1193 (2023).

The quasicharge superconducting qubit realizes the dual of the transmon and shows strong robustness to flux and charge fluctuations thanks to a very large inductance closed on a Josephson ju…

Chu Guo, Yi Fan, Zhiqian Xu, and Honghui Shang,

Quantum 7, 1192 (2023).

Quantum Computing is believed to be the ultimate solution for quantum chemistry problems. Before the advent of large-scale, fully fault-tolerant quantum computers, the variational quantum ei…

Jonas Glatthard, Karen V. Hovhannisyan, Martí Perarnau-Llobet, Luis A. Correa, and Harry J. D. Miller,

Quantum 7, 1190 (2023).

We develop a general perturbative theory of finite-coupling quantum thermometry up to second order in probe-sample interaction. By assumption, the probe and sample are in thermal equilibrium…

Eric R. Anschuetz, Andreas Bauer, Bobak T. Kiani, and Seth Lloyd,

Quantum 7, 1189 (2023).

In light of recently proposed quantum algorithms that incorporate symmetries in the hope of quantum advantage, we show that with symmetries that are restrictive enough, classical algorithms…

Carlos Bravo-Prieto, Ryan LaRose, M. Cerezo, Yigit Subasi, Lukasz Cincio, and Patrick J. Coles,

Quantum 7, 1188 (2023).

Previously proposed quantum algorithms for solving linear systems of equations cannot be implemented in the near term due to the required circuit depth. Here, we propose a hybrid quantum-cla…

Hao Shu,

Quantum 7, 1187 (2023).

Single photon detector(SPD) problems arise in most quantum tasks, especially for measuring states going through high-lost channels. They are particularly prominent in quantum key distributio…