Category: Paper

Ahmed A. Akhtar, Hong-Ye Hu, and Yi-Zhuang You,

Quantum 7, 1026 (2023).

Classical shadow tomography is a powerful randomized measurement protocol for predicting many properties of a quantum state with few measurements. Two classical shadow protocols have been ex…

Jasminder S. Sidhu, Michael S. Bullock, Saikat Guha, and Cosmo Lupo,

Quantum 7, 1025 (2023).

Coherent states of the quantum electromagnetic field, the quantum description of ideal laser light, are prime candidates as information carriers for optical communications. A large body of l…

Marco Ballarin, Stefano Mangini, Simone Montangero, Chiara Macchiavello, and Riccardo Mengoni,

Quantum 7, 1023 (2023).

Quantum Neural Networks (QNN) are considered a candidate for achieving quantum advantage in the Noisy Intermediate Scale Quantum computer (NISQ) era. Several QNN architectures have been prop…

Soumik Bandyopadhyay, Philipp Uhrich, Alessio Paviglianiti, and Philipp Hauke,

Quantum 7, 1022 (2023).

Equilibrium quantum many-body systems in the vicinity of phase transitions generically manifest universality. In contrast, limited knowledge has been gained on possible universal characteris…

Zacharie Van Herstraeten, Michael G. Jabbour, and Nicolas J. Cerf,

Quantum 7, 1021 (2023).

We explore the role of majorization theory in quantum phase space. To this purpose, we restrict ourselves to quantum states with positive Wigner functions and show that the continuous versio…

Pavel Kos and Georgios Styliaris,

Quantum 7, 1020 (2023).

Exact solutions in interacting many-body systems are scarce but extremely valuable since they provide insights into the dynamics. Dual-unitary models are examples in one spatial dimension wh…

Mateus Araújo, Marcus Huber, Miguel Navascués, Matej Pivoluska, and Armin Tavakoli,

Quantum 7, 1019 (2023).

Computing the key rate in quantum key distribution (QKD) protocols is a long standing challenge. Analytical methods are limited to a handful of protocols with highly symmetric measurement ba…

William Kirby, Mario Motta, and Antonio Mezzacapo,

Quantum 7, 1018 (2023).

We present an algorithm that uses block encoding on a quantum computer to exactly construct a Krylov space, which can be used as the basis for the Lanczos method to estimate extremal eigenva…

Joseph T. Iosue, Adam Ehrenberg, Dominik Hangleiter, Abhinav Deshpande, and Alexey V. Gorshkov,

Quantum 7, 1017 (2023).

Bosonic Gaussian states are a special class of quantum states in an infinite dimensional Hilbert space that are relevant to universal continuous-variable quantum computation as well as to ne…

Álvaro Gómez-León, Tomás Ramos, Alejandro González-Tudela, and Diego Porras,

Quantum 7, 1016 (2023).

We study the phenomena of topological amplification in arrays of parametric oscillators. We find two phases of topological amplification, both with directional transport and exponential gain…

Arthur J. Parzygnat and Francesco Buscemi,

Quantum 7, 1013 (2023).

We propose a category-theoretic definition of retrodiction and use it to exhibit a time-reversal symmetry for all quantum channels. We do this by introducing retrodiction families and functo…

Koji Yamaguchi and Hiroyasu Tajima,

Quantum 7, 1012 (2023).

Metric adjusted skew information, induced from quantum Fisher information, is a well-known family of resource measures in the resource theory of asymmetry. However, its asymptotic rates are…

Hamza Fawzi, Omar Fawzi, and Samuel O. Scalet,

Quantum 7, 1011 (2023).

We introduce a classical algorithm to approximate the free energy of local, translation-invariant, one-dimensional quantum systems in the thermodynamic limit of infinite chain size. While th…