System-environment quantum information flow
Taysa M. Mendonça, Lucas C. Céleri, Mauro Paternostro, and Diogo O. Soares-Pinto
Phys. Rev. A 110, L040401 (2024) - Published 10 October, 2024
This work sheds light on the mechanism that governs the propagation of quantum information from a system to its surrounding environment, highlighting the possibility of witnessing a quantum-to-classical transition in the process.
Polarization-insensitive state preparation for trapped-ion hyperfine qubits
A. D. Leu, M. C. Smith, M. F. Gely, and D. M. Lucas
Phys. Rev. A 110, L040402 (2024) - Published 16 October, 2024
This work presents a hybrid optical-microwave state preparation scheme for trapped ions with nuclear spin > 1/2 at intermediate magnetic fields. This method provides a robust solution for high-fidelity state preparation that eliminates the need for polarization purity, making it well suited for scalable quantum computing systems.
Stabilizer entropies are monotones for magic-state resource theory
Lorenzo Leone and Lennart Bittel
Phys. Rev. A 110, L040403 (2024) - Published 18 October, 2024
The authors prove the monotonicity of stabilizer entropies under general stabilizer operations. This result establishes stabilizer entropies as the only known family of monotones that are experimentally measurable and computationally tractable.
























