Paper Topological Link Models of Multipartite Entanglement Ning Bao, Newton Cheng, Sergio Hernández-Cuenca, and Vincent Paul Su, Quantum 6, 741 (2022). We introduce a novel model of multipartite entanglement based on topological links, generalizing the graph/hypergraph entropy cone program. We demonstrate that there exist link representatio…
Paper Inverse engineering of fast state transfer among coupled oscillators Xiao-Jing Lu, Ion Lizuain, and J. G. Muga, Quantum 6, 740 (2022). We design faster-than-adiabatic state transfers (switching of quantum numbers) in time-dependent coupled-oscillator Hamiltonians. The manipulation to drive the process is found using a two-d…
Paper Quantum simulation in the semi-classical regime Shi Jin, Xiantao Li, and Nana Liu, Quantum 6, 739 (2022). Solving the time-dependent Schrödinger equation is an important application area for quantum algorithms. We consider Schrödinger's equation in the semi-classical regime. Here the solutions e…
Paper Emergent quantum state designs and biunitarity in dual-unitary circuit dynamics Pieter W. Claeys and Austen Lamacraft, Quantum 6, 738 (2022). Recent works have investigated the emergence of a new kind of random matrix behaviour in unitary dynamics following a quantum quench. Starting from a time-evolved state, an ensemble of pure…
Paper One bound to rule them all: from Adiabatic to Zeno Daniel Burgarth, Paolo Facchi, Giovanni Gramegna, and Kazuya Yuasa, Quantum 6, 737 (2022). We derive a universal nonperturbative bound on the distance between unitary evolutions generated by time-dependent Hamiltonians in terms of the difference of their integral actions. We apply…
Paper Integrability of the $ν=4/3$ fractional quantum Hall edge states Yichen Hu and Biao Lian, Quantum 6, 736 (2022). We investigate the homogeneous chiral edge theory of the filling $\nu=4/3$ fractional quantum Hall state, which is parameterized by a Luttinger liquid velocity matrix and an electron tunneling…
Paper Genuine multipartite entanglement of quantum states in the multiple-copy scenario Carlos Palazuelos and Julio I. de Vicente, Quantum 6, 735 (2022). Genuine multipartite entanglement (GME) is considered a powerful form of entanglement since it corresponds to those states that are not biseparable, i.e. a mixture of partially separable sta…
Paper The Classification of Clifford Gates over Qubits Daniel Grier and Luke Schaeffer, Quantum 6, 734 (2022). We examine the following problem: given a collection of Clifford gates, describe the set of unitaries generated by circuits composed of those gates. Specifically, we allow the standard circu…
Paper Non-ergodic delocalized phase with Poisson level statistics Weichen Tang and Ivan M. Khaymovich, Quantum 6, 733 (2022). Motivated by the many-body localization (MBL) phase in generic interacting disordered quantum systems, we develop a model simulating the same eigenstate structure like in MBL, but in the ran…
Paper Solvable Criterion for the Contextuality of any Prepare-and-Measure Scenario Victor Gitton and Mischa P. Woods, Quantum 6, 732 (2022). Starting from arbitrary sets of quantum states and measurements, referred to as the prepare-and-measure scenario, an operationally noncontextual ontological model of the quantum statistics a…
Paper Topological phonons in arrays of ultracold dipolar particles Marco Di Liberto, Andreas Kruckenhauser, Peter Zoller, and Mikhail A. Baranov, Quantum 6, 731 (2022). The notion of topology in physical systems is associated with the existence of a nonlocal ordering that is insensitive to a large class of perturbations. This brings robustness to the behavi…
Paper A variational quantum algorithm for the Feynman-Kac formula Hedayat Alghassi, Amol Deshmukh, Noelle Ibrahim, Nicolas Robles, Stefan Woerner, and Christa Zoufal, Quantum 6, 730 (2022). We propose an algorithm based on variational quantum imaginary time evolution for solving the Feynman-Kac partial differential equation resulting from a multidimensional system of stochastic…
Paper Architecture aware compilation of quantum circuits via lazy synthesis Simon Martiel and Timothée Goubault de Brugière, Quantum 6, 729 (2022). Qubit routing is a key problem for quantum circuit compilation. It consists in rewriting a quantum circuit by adding the least possible number of instructions to make the circuit compliant w…
Paper Solving the Bose-Hubbard model in new ways Artur Sowa and Jonas Fransson, Quantum 6, 728 (2022). We introduce a new method for analysing the Bose-Hubbard model for an array of bosons with nearest neighbor interactions. It is based on a number-theoretic implementation of the creation and…
Paper Quantum Machine Learning with SQUID Alessandro Roggero, Jakub Filipek, Shih-Chieh Hsu, and Nathan Wiebe, Quantum 6, 727 (2022). In this work we present the Scaled QUantum IDentifier (SQUID), an open-source framework for exploring hybrid Quantum-Classical algorithms for classification problems. The classical infrastru…
Paper A general quantum algorithm for open quantum dynamics demonstrated with the Fenna-Matthews-Olson complex Zixuan Hu, Kade Head-Marsden, David A. Mazziotti, Prineha Narang, and Sabre Kais, Quantum 6, 726 (2022). Using quantum algorithms to simulate complex physical processes and correlations in quantum matter has been a major direction of quantum computing research, towards the promise of a quantum…
