Quantum key distribution (QKD) is an emerging communication technology that utilizes quantum mechanics principles to ensure highly secure communication between two parties. It enables the sender and receiver to generate a shared secret key over […]
Physicists have uncovered a link between magnetism and a mysterious phase of matter called the pseudogap, which appears in certain quantum materials just above the temperature at which they become superconducting. The findings could help […]
Insider Brief A new IEEE Journal of Quantum Electronics study presents an analytical framework quantifying how pointing error degrades performance in quantum key distribution optical wireless communication systems. Using BB84 with Rayleigh and Hoyt statistical […]
Quantum 10, 1974 (2026). https://doi.org/10.22331/q-2026-01-19-1974 A multi-product formula (MPF) is a promising approach for Hamiltonian simulation efficiently both in the system size $N$ and the inverse allowable error $1/varepsilon$ by combining Trotterization and the linear […]
Quantum 10, 1973 (2026). https://doi.org/10.22331/q-2026-01-19-1973 We consider the task of performing shadow tomography of a logical subsystem defined via the Gottesman-Kitaev-Preskill (GKP) error correcting code. Our protocol does not require the input state to be […]
Quantum 10, 1972 (2026). https://doi.org/10.22331/q-2026-01-19-1972 Photonic systems offer a promising platform for interconnecting quantum processors and enabling scalable, networked architectures. Designing and verifying such architectures requires a unified formalism that integrates linear algebraic reasoning with […]
Quantum 10, 1971 (2026). https://doi.org/10.22331/q-2026-01-19-1971 We introduce the $textit{stellar decomposition}$, a novel method for characterizing non-Gaussian states produced by photon-counting measurements on Gaussian states. Given an $(m+n)$-mode Gaussian state $G$, we express it as an […]
Application deadline: Monday, March 16, 2026 Employer web page: QUANG Job type: Fellowship PhD We are pleased to announce the opening of the 2026 PhD call of the QuanG2 programme, an international doctoral programme in […]
Quantum 10, 1970 (2026). https://doi.org/10.22331/q-2026-01-19-1970 The occurrence of a second-order quantum phase transition in the Dicke model is a well-established feature. On the contrary, a comprehensive understanding of the corresponding open system, particularly in the […]
Quantum 10, 1969 (2026). https://doi.org/10.22331/q-2026-01-19-1969 High-dimensional fractional reaction-diffusion equations have numerous applications in the fields of biology, chemistry, and physics, and exhibit a range of rich phenomena. While classical algorithms have an exponential complexity in […]
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