Quantum speed limit in terms of coherence variations

Z Mai, C Yu - Physical Review A, 2024 - APS
Coherence is the most fundamental quantum resource in quantum information processing.
How fast a physical system gets coherence or decoherence is a critical ingredient. We …

Special features of the Weyl–Heisenberg Bell basis imply unusual entanglement structure of Bell-diagonal states

C Popp, BC Hiesmayr - New Journal of Physics, 2024 - iopscience.iop.org
Bell states are of crucial importance for entanglement based methods in quantum
information science. Typically, a standard construction of a complete orthonormal Bell-basis …

Quantum error channels in high energetic photonic systems

BC Hiesmayr, W Krzemień, M Bała - Scientific Reports, 2024 - nature.com
In medical applications—such as positron emission tomography (PET)—511 keV photons
that experience Compton scattering are studied. We present a consistent framework based …

Fundamental speed limits on entanglement dynamics of bipartite quantum systems

V Pandey, S Bhowmick, B Mohan, Sohail, U Sen - Physical Review A, 2024 - APS
The speed limit on entanglement is defined as the maximal rate at which entanglement can
be generated or degraded in a physical process. We derive the speed limits on …