Paper – Page 2 – Quantum

Paper

Quantum Multi-Solution Bernoulli Search with Applications to Bitcoin’s Post-Quantum Security

Alexandru Cojocaru, Juan Garay, Aggelos Kiayias, Fang Song, and Petros Wallden,

Quantum 7, 944 (2023).

A proof of work (PoW) is an important cryptographic construct enabling a party to convince others that they invested some effort in solving a computational task. Arguably, its main impact ha…

Paper

Quantum manipulation of a two-level mechanical system

Salvatore Chiavazzo, Anders Søndberg Sørensen, Oleksandr Kyriienko, and Luca Dellantonio,

Quantum 7, 943 (2023).

We consider a nonlinearly coupled electromechanical system, and develop a quantitative theory for two-phonon cooling. In the presence of two-phonon cooling, the mechanical Hilbert space is e…

Paper

Quantum Error Correction with Quantum Autoencoders

David F. Locher, Lorenzo Cardarelli, and Markus Müller,

Quantum 7, 942 (2023).

Active quantum error correction is a central ingredient to achieve robust quantum processors. In this paper we investigate the potential of quantum machine learning for quantum error correct…

Paper

Robust phase-controlled gates for scalable atomic quantum processors using optical standing waves

Shannon Whitlock,

Quantum 7, 941 (2023).

A simple scheme is presented for realizing robust optically controlled quantum gates for scalable atomic quantum processors by driving the qubits with optical standing waves. Atoms localized…

Paper

A cellular automaton decoder for a noise-bias tailored color code

Jonathan F. San Miguel, Dominic J. Williamson, and Benjamin J. Brown,

Quantum 7, 940 (2023).

Self-correcting quantum memories demonstrate robust properties that can be exploited to improve active quantum error-correction protocols. Here we propose a cellular automaton decoder for a…

Paper

Information transmission with continuous variable quantum erasure channels

Changchun Zhong, Changhun Oh, and Liang Jiang,

Quantum 7, 939 (2023).

Quantum capacity, as the key figure of merit for a given quantum channel, upper bounds the channel's ability in transmitting quantum information. Identifying different types of channels, eva…

Paper

Amplitude Ratios and Neural Network Quantum States

Vojtech Havlicek,

Quantum 7, 938 (2023).

Neural Network Quantum States (NQS) represent quantum wavefunctions by artificial neural networks. Here we study the wavefunction access provided by NQS defined in [Science, 355, 6325, pp. 6…

Paper

Amplitude Estimation from Quantum Signal Processing

Patrick Rall and Bryce Fuller,

Quantum 7, 937 (2023).

Amplitude estimation algorithms are based on Grover's algorithm: alternating reflections about the input state and the desired outcome. But what if we are given the ability to perform arbitr…

Paper

Efficient algorithms for quantum information bottleneck

Masahito Hayashi and Yuxiang Yang,

Quantum 7, 936 (2023).

The ability to extract relevant information is critical to learning. An ingenious approach as such is the information bottleneck, an optimisation problem whose solution corresponds to a fait…

Paper

Modular architectures to deterministically generate graph states

Hassan Shapourian and Alireza Shabani,

Quantum 7, 935 (2023).

Graph states are a family of stabilizer states which can be tailored towards various applications in photonic quantum computing and quantum communication. In this paper, we present a modular…

Paper

Fast quantum circuit cutting with randomized measurements

Angus Lowe, Matija Medvidović, Anthony Hayes, Lee J. O’Riordan, Thomas R. Bromley, Juan Miguel Arrazola, and Nathan Killoran,

Quantum 7, 934 (2023).

We propose a new method to extend the size of a quantum computation beyond the number of physical qubits available on a single device. This is accomplished by randomly inserting measure-and-…

Paper

Variational quantum solutions to the Shortest Vector Problem

Martin R. Albrecht, Miloš Prokop, Yixin Shen, and Petros Wallden,

Quantum 7, 933 (2023).

A fundamental computational problem is to find a shortest non-zero vector in Euclidean lattices, a problem known as the Shortest Vector Problem (SVP). This problem is believed to be hard eve…

Paper

Security of device-independent quantum key distribution protocols: a review

Ignatius W. Primaatmaja, Koon Tong Goh, Ernest Y.-Z. Tan, John T.-F. Khoo, Shouvik Ghorai, and Charles C.-W. Lim,

Quantum 7, 932 (2023).

Device-independent quantum key distribution (DI-QKD) is often seen as the ultimate key exchange protocol in terms of security, as it can be performed securely with uncharacterised black-box…

Paper

Perceval: A Software Platform for Discrete Variable Photonic Quantum Computing

Nicolas Heurtel, Andreas Fyrillas, Grégoire de Gliniasty, Raphaël Le Bihan, Sébastien Malherbe, Marceau Pailhas, Eric Bertasi, Boris Bourdoncle, Pierre-Emmanuel Emeriau, Rawad Mezher, Luka Music, Nadia Belabas, Benoît Valiron, Pascale Senellart, Shane Mansfield, and Jean Senellart,

Quantum 7, 931 (2023).

We introduce $Perceval$, an open-source software platform for simulating and interfacing with discrete-variable photonic quantum computers, and describe its main features and components. Its P…

Paper

Quantum circuits for solving local fermion-to-qubit mappings

Jannes Nys and Giuseppe Carleo,

Quantum 7, 930 (2023).

Local Hamiltonians of fermionic systems on a lattice can be mapped onto local qubit Hamiltonians. Maintaining the locality of the operators comes at the expense of increasing the Hilbert spa…

Paper

Efficient color code decoders in $d\geq 2$ dimensions from toric code decoders

Aleksander Kubica and Nicolas Delfosse,

Quantum 7, 929 (2023).

We introduce an efficient decoder of the color code in $d\geq 2$ dimensions, the Restriction Decoder, which uses any $d$-dimensional toric code decoder combined with a local lifting procedure to…