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Archives: Paper

Paper published by Quantum

Paper

Deep Learning of Quantum Many-Body Dynamics via Random Driving

Naeimeh Mohseni, Thomas Fösel, Lingzhen Guo, Carlos Navarrete-Benlloch, and Florian Marquardt,

Quantum 6, 714 (2022).

Neural networks have emerged as a powerful way to approach many practical problems in quantum physics. In this work, we illustrate the power of deep learning to predict the dynamics of a qua…

Paper

Quantum and Classical Bayesian Agents

John B. DeBrota and Peter J. Love,

Quantum 6, 713 (2022).

We describe a general approach to modeling rational decision-making agents who adopt either quantum or classical mechanics based on the Quantum Bayesian (QBist) approach to quantum theory. W…

Paper

Time-Optimal Two- and Three-Qubit Gates for Rydberg Atoms

Sven Jandura and Guido Pupillo,

Quantum 6, 712 (2022).

We identify time-optimal laser pulses to implement the controlled-Z gate and its three qubit generalization, the C$_2$Z gate, for Rydberg atoms in the blockade regime. Pulses are optimized usi…

Paper

Connectivity constrains quantum codes

Nouédyn Baspin and Anirudh Krishna,

Quantum 6, 711 (2022).

Quantum low-density parity-check (LDPC) codes are an important class of quantum error correcting codes. In such codes, each qubit only affects a constant number of syndrome bits, and each sy…

Paper

Approaching the theoretical limit in quantum gate decomposition

Péter Rakyta and Zoltán Zimborás,

Quantum 6, 710 (2022).

In this work we propose a novel numerical approach to decompose general quantum programs in terms of single- and two-qubit quantum gates with a $CNOT$ gate count very close to the current theo…

Paper

Jet: Fast quantum circuit simulations with parallel task-based tensor-network contraction

Trevor Vincent, Lee J. O’Riordan, Mikhail Andrenkov, Jack Brown, Nathan Killoran, Haoyu Qi, and Ish Dhand,

Quantum 6, 709 (2022).

We introduce a new open-source software library $Jet$, which uses task-based parallelism to obtain speed-ups in classical tensor-network simulations of quantum circuits. These speed-ups result…

Paper

Finite-Function-Encoding Quantum States

Paul Appel, Alexander J. Heilman, Ezekiel W. Wertz, David W. Lyons, Marcus Huber, Matej Pivoluska, and Giuseppe Vitagliano,

Quantum 6, 708 (2022).

We introduce finite-function-encoding (FFE) states which encode arbitrary $d$-valued logic functions, i.e., multivariate functions over the ring of integers modulo $d$, and investigate some of t…

Paper

Re-examining the quantum volume test: Ideal distributions, compiler optimizations, confidence intervals, and scalable resource estimations

Charles H. Baldwin, Karl Mayer, Natalie C. Brown, Ciarán Ryan-Anderson, and David Hayes,

Quantum 6, 707 (2022).

The quantum volume test is a full-system benchmark for quantum computers that is sensitive to qubit number, fidelity, connectivity, and other quantities believed to be important in building…

Paper

Fast simulation of quantum algorithms using circuit optimization

Gian Giacomo Guerreschi,

Quantum 6, 706 (2022).

Classical simulators play a major role in the development and benchmark of quantum algorithms and practically any software framework for quantum computation provides the option of running th…

Paper

Bending the rules of low-temperature thermometry with periodic driving

Jonas Glatthard and Luis A. Correa,

Quantum 6, 705 (2022).

There exist severe limitations on the accuracy of low-temperature thermometry, which poses a major challenge for future quantum-technological applications. Low-temperature sensitivity might…

Paper

Maximal entanglement increase with single-photon subtraction

Kun Zhang, Jietai Jing, Nicolas Treps, and Mattia Walschaers,

Quantum 6, 704 (2022).

Entanglement is an indispensable quantum resource for quantum information technology. In continuous-variable quantum optics, photon subtraction can increase the entanglement between Gaussian…

Paper

Unitary Selective Coupled-Cluster Method

Dmitry A. Fedorov, Yuri Alexeev, Stephen K. Gray, and Matthew Otten,

Quantum 6, 703 (2022).

Simulating molecules using the Variational Quantum Eigensolver method is one of the promising applications for NISQ-era quantum computers. Designing an efficient ansatz to represent the elec…

Paper

Entanglement Spectroscopy and probing the Li-Haldane Conjecture in Topological Quantum Matter

Torsten V. Zache, Christian Kokail, Bhuvanesh Sundar, and Peter Zoller,

Quantum 6, 702 (2022).

Topological phases are characterized by their entanglement properties, which is manifest in a direct relation between entanglement spectra and edge states discovered by Li and Haldane. We pr…

Paper

Eigenstate entanglement in integrable collective spin models

Meenu Kumari and Álvaro M. Alhambra,

Quantum 6, 701 (2022).

The average entanglement entropy (EE) of the energy eigenstates in non-vanishing partitions has been recently proposed as a diagnostic of integrability in quantum many-body systems. For it t…

Paper

Understanding and Improving Critical Metrology. Quenching Superradiant Light-Matter Systems Beyond the Critical Point

Karol Gietka, Lewis Ruks, and Thomas Busch,

Quantum 6, 700 (2022).

We carefully examine critical metrology and present an improved critical quantum metrology protocol which relies on quenching a system exhibiting a superradiant quantum phase transition beyo…

Paper

An Operational Environment for Quantum Self-Testing

Matthias Christandl, Nicholas Gauguin Houghton-Larsen, and Laura Mancinska,

Quantum 6, 699 (2022).

Observed quantum correlations are known to determine in certain cases the underlying quantum state and measurements. This phenomenon is known as $\textit{(quantum) self-testing}$. Self-testing…

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Quantum is an open-access peer-reviewed journal for quantum science and related fields.

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People

Coordinating editors

  • Carlo Beenakker
  • Eric Cavalcanti
  • Sevag Gharibian
  • Ujjwal Sen
  • Witlef Wieczorek
  • Ronald de Wolf

Editors

  • Álvaro Alhambra
  • Anurag Anshu
  • Simon Apers
  • Srinivasan Arunachalam
  • Remigiusz Augusiak
  • Miriam Backens
  • Kishor Bharti
  • Dan Browne
  • Earl Campbell
  • Ángela Capel
  • Marco Cerezo
  • Charles Clark
  • Andrea Coladangelo
  • Ivan Contreras
  • Borivoje Dakic
  • Nicolas Delfosse
  • Abhinav Deshpande
  • Yongshan Ding
  • Vedran Dunjko
  • Frédéric Dupuis
  • Omar Fawzi
  • Nicolai Friis
  • Raúl García-Patrón
  • Roohollah Ghobadi
  • Géza Giedke
  • Alex Grilo
  • Tom Gur
  • Alioscia Hamma
  • Jonas Helsen
  • Philipp Höhn
  • Fred Jendrzejewski
  • Isaac Kim
  • Richard Küng
  • Felix Leditzky
  • Anthony Leverrier
  • Tongyang Li
  • Tommaso Macrì
  • Laura Mančinska
  • Olivia Di Matteo
  • Pérola Milman
  • Mark Mitchison
  • Kavan Modi
  • Tomoyuki Morimae
  • Ion Nechita
  • Bryan O'Gorman
  • Anna Pappa
  • Saverio Pascazio
  • Matthew Pusey
  • Patrick Rebentrost
  • Ansis Rosmanis
  • Krishna Kumar Sabapathy
  • Marcelo Santos
  • Mohan Sarovar
  • Philipp Schindler
  • David Schmid
  • Kunal Sharma
  • Jens Siewert
  • Paul Skrzypczyk
  • André Stefanov
  • Luca Tagliacozzo
  • Jordi Tura
  • Petros Wallden
  • Xin Wang
  • Alexander Wilce
  • Magdalena Zych

Executive Board

  • Christian Gogolin
  • Marcus Huber
  • Lídia del Rio

Steering Board

  • Antonio Acín
  • Anne Broadbent
  • Harry Buhrman
  • Daniel Burgarth
  • Guido Burkard
  • Jens Eisert
  • Steven Flammia
  • Cassandra Granade
  • Aram Harrow
  • Khabat Heshami
  • Chris Heunen
  • Stacey Jeffery
  • Shelby Kimmel
  • Matthew Leifer
  • Debbie Leung
  • Chaoyang Lu
  • Chiara Macchiavello
  • Milan Mosonyi
  • Ahsan Nazir
  • Román Orús
  • Joseph M. Renes
  • Ana Maria Rey
  • Anna Sanpera
  • Jörg Schmiedmayer
  • Urbasi Sinha
  • John A. Smolin
  • Robert W. Spekkens
  • Aephraim M. Steinberg
  • Francesca Vidotto
  • Michael Walter
  • Reinhard Werner
  • Birgitta Whaley
  • Andreas Winter
  • Karol Życzkowski

Supporters

Agnostiq Unitary Fund Stanhill foundation IQOQI Vienna CQT COST network Thermodynamics in the Quantum Regime Xanadu logo Support Quantum and

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