Quantum 9, 1836 (2025). https://doi.org/10.22331/q-2025-08-27-1836 Ground state energy estimation in physical, chemical, and materials sciences is one of the most promising applications of quantum computing. In this work, we introduce a new hybrid approach that […]
Quantum 9, 1835 (2025). https://doi.org/10.22331/q-2025-08-27-1835 We propose a two step strategy for estimating one-dimensional dynamical parameters of a quantum Markov chain, which involves quantum post-processing the output using a coherent quantum absorber and a “pattern […]
Quantum 9, 1834 (2025). https://doi.org/10.22331/q-2025-08-27-1834 Quantum signal processing (QSP) is a methodology for constructing polynomial transformations of a linear operator encoded in a unitary. Applied to an encoding of a state $rho$, QSP enables the […]
Postdoc position in bosonic quantum error correction, Paris (France) Submitted by frarzani on Wed, 27/08/2025 – 13:55. Application deadline: Sunday, November 30, 2025 A postdoctoral position is open to work with Francesco Arzani and the […]
Quantum technologies, devices that work by leveraging quantum mechanical effects, could outperform classical technologies in some fields and settings. The so-called spin (i.e., intrinsic angular momentum) carried by quantum particles is central to the functioning […]
Quantum 9, 1833 (2025). https://doi.org/10.22331/q-2025-08-27-1833 We significantly enhance the simulation accuracy of initial Trotter circuits for Hamiltonian simulation of quantum systems by integrating first-order Riemannian optimization with tensor network methods. Unlike previous approaches, our method […]
Quantum 9, 1832 (2025). https://doi.org/10.22331/q-2025-08-27-1832 Estimating the trace of quantum state powers, $text{Tr}(rho^k)$, for $k$ identical quantum states is a fundamental task with numerous applications in quantum information processing, including nonlinear function estimation of quantum […]
PhD in Relativistic Quantum Reference Frames at the University of South-Eastern Norway Submitted by Leon Loveridge on Wed, 27/08/2025 – 12:33. Application deadline: Friday, September 26, 2025 There is a fully funded PhD position in […]
Quantum 9, 1831 (2025). https://doi.org/10.22331/q-2025-08-27-1831 We investigate boundaries of 3D color codes and provide a systematic classification into 101 distinct boundary types, including two novel classes. The first class consists of 1 boundary and is […]
Researchers in Germany have unveiled the Metafiber, a breakthrough device that allows ultra-precise, rapid, and compact control of light focus directly within an optical fiber. Unlike traditional systems that rely on bulky moving parts, the […]
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