Quantum 9, 1812 (2025). https://doi.org/10.22331/q-2025-07-23-1812 Accurately estimating the properties of quantum systems is a central challenge in quantum computing and quantum information. We propose a method to obtain unbiased estimators of multiple observables with low […]
Quantum 9, 1811 (2025). https://doi.org/10.22331/q-2025-07-23-1811 We derive a class of cellular automata for the Schrödinger Hamiltonian, including scalar and vector potentials. It is based on a multi-split of the Hamiltonian, resulting in a multi-step unitary […]
Quantum 9, 1810 (2025). https://doi.org/10.22331/q-2025-07-23-1810 Bosonic codes encode quantum information into a single infinite-dimensional physical system endowed with error correction capabilities. This reduces the need for complex management of many physical constituents compared with standard […]
Quantum 9, 1809 (2025). https://doi.org/10.22331/q-2025-07-23-1809 We provide a graphical method to describe and analyze non-Gaussian quantum states using a hypergraph framework. These states are pivotal resources for quantum computing, communication, and metrology, but their characterization […]
Quantum 9, 1808 (2025). https://doi.org/10.22331/q-2025-07-22-1808 Discrete models of holographic dualities, typically modeled by tensor networks on hyperbolic tilings, produce quantum states with a characteristic quasiperiodic disorder not present in continuum holography. In this work, we […]
Quantum 9, 1807 (2025). https://doi.org/10.22331/q-2025-07-22-1807 Certifying quantum properties from the probability distributions they induce is an important task for several purposes. While this framework has been largely explored and used for quantum states, its extrapolation […]
Quantum 9, 1806 (2025). https://doi.org/10.22331/q-2025-07-22-1806 Quantum state estimation is a fundamental task in quantum information theory, where one estimates real parameters continuously embedded in a family of quantum states. In the theory of quantum state […]
Quantum 9, 1805 (2025). https://doi.org/10.22331/q-2025-07-22-1805 Block encoding severs as an important data input model in quantum algorithms, enabling quantum computers to simulate non-unitary operators effectively. In this paper, we propose an efficient block-encoding protocol for […]
Quantum 9, 1804 (2025). https://doi.org/10.22331/q-2025-07-22-1804 Autonomous quantum memories are a way to passively protect quantum information using engineered dissipation that creates an “always-on” decoder. We analyze Markovian autonomous decoders that can be implemented with a […]
Quantum 9, 1803 (2025). https://doi.org/10.22331/q-2025-07-22-1803 We investigate the challenge of classical simulation of unitary quantum dynamics with variational Monte Carlo approaches, addressing the instabilities and high computational demands of existing methods. By systematically analyzing the […]
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