activity
20182026
most citedSimulability of observables in general probabilistic theories

35 citations · 35 across the 7 of their papers we have counts for

collaborators

7 papers

quant-ph2026

Quantifying randomness with measurement incompatibility

Sebastian Schlösser, Pauli Jokinen, Martin Plávala +3

We present a trade-off between the amount of observed measurement incompatibility and the capabilities of a classical Eavesdropper in a prepare-and-measure scenario. The result is…

quant-ph2026

Nonclassical traits in multi-copy state discrimination

Tim Achenbach, Leevi Leppäjärvi, Hanwool Lee +1

Quantum state discrimination is a fundamental information processing task that serves as a key component in many applications while also carrying foundational significance. In this…

quant-ph2026

Adversarial Information Gain in Non-ideal Quantum Measurements

Andrés Muñoz-Moller, Leevi Leppäjärvi, Teiko Heinosaari

Performing a quantum measurement yields two different results: a classical outcome drawn from a probability distribution, according to Born's rule, and a quantum outcome correspond…

quant-ph2025

Semi-device-independent channel identification with communication matrices

Samgeeth Puliyil, Leevi Leppäjärvi, Mário Ziman

We look into the task of differentiating between any two quantum channels and reconstructing them from the obtained measurement statistics with possibly limited information about t…

quant-ph2023

Encoding and decoding of information in general probabilistic theories

Teiko Heinosaari, Leevi Leppäjärvi, Martin Plávala

Encoding and decoding are the two key steps in information processing. In this work we study the encoding and decoding capabilities of operational theories in the context of inform…

quant-ph2021

Measurement simulability and incompatibility in quantum theory and other operational theories

Leevi Leppäjärvi

In this thesis, we consider the properties of measurements in quantum theory and other operational theories. After having introduced the framework of operational theories, we consi…

quant-ph2018★ 35 cited

Simulability of observables in general probabilistic theories

Sergey N. Filippov, Teiko Heinosaari, Leevi Leppäjärvi

The existence of incompatibility is one of the most fundamental features of quantum theory, and can be found at the core of many of the theory's distinguishing features, such as Be…