3 papers
quant-ph2024
Informationally overcomplete measurements from generalized equiangular tight frames
Katarzyna Siudzińska
Informationally overcomplete measurements find important applications in quantum tomography and quantum state estimation. The most popular are maximal sets of mutually unbiased bas…
quant-ph2024
How much symmetry do symmetric measurements need for efficient operational applications?
Katarzyna Siudzińska
We introduce a generalization of symmetric measurements to collections of unequinumerous positive, operator-valued measures (POVMs). For informationally complete sets, we propose c…
quant-ph2024
Non-Markovian quantum dynamics from symmetric measurements
Katarzyna Siudzińska
We use symmetric measurement operators to construct quantum channels that provide a further generalization of generalized Pauli channels. The resulting maps are bistochastic but in…