Heisenberg's uncertainty principle

P Busch, T Heinonen, P Lahti - Physics reports, 2007 - Elsevier
Heisenberg's uncertainty principle is usually taken to express a limitation of operational
possibilities imposed by quantum mechanics. Here we demonstrate that the full content of …

Quantum reference frames, measurement schemes and the type of local algebras in quantum field theory

CJ Fewster, DW Janssen, LD Loveridge… - … in Mathematical Physics, 2025 - Springer
We develop an operational framework, combining relativistic quantum measurement theory
with quantum reference frames (QRFs), in which local measurements of a quantum field on …

Measurement uncertainty relations

P Busch, P Lahti, RF Werner - Journal of Mathematical Physics, 2014 - pubs.aip.org
Measurement uncertainty relations are quantitative bounds on the errors in an approximate
joint measurement of two observables. They can be seen as a generalization of the …

Informationally complete joint measurements on finite quantum systems

C Carmeli, T Heinosaari, A Toigo - Physical Review A—Atomic, Molecular, and …, 2012 - APS
We show that there are informationally complete joint measurements of two conjugated
observables on a finite quantum system, meaning that they enable the identification of all …

[HTML][HTML] Maximally incompatible quantum observables

T Heinosaari, J Schultz, A Toigo, M Ziman - Physics Letters A, 2014 - Elsevier
The existence of maximally incompatible quantum observables in the sense of a minimal
joint measurability region is investigated. Employing the universal quantum cloning device it …

Uncertainty Relations Relative to Phase Space Quantum Reference Frames

MJ Riera, L Loveridge - arxiv preprint arxiv:2411.08589, 2024 - arxiv.org
Heisenberg's uncertainty relation does not take into account that position and momentum
are defined relative to a quantum reference frame (QRF). We introduce such a QRF as a …

Measurement uncertainty relations for position and momentum: relative entropy formulation

A Barchielli, M Gregoratti, A Toigo - Entropy, 2017 - mdpi.com
Heisenberg's uncertainty principle has recently led to general measurement uncertainty
relations for quantum systems: incompatible observables can be measured jointly or in …

How sharp are PV measures?

A Jencová, S Pulmannová - arxiv preprint math-ph/0701031, 2007 - arxiv.org
Properties of sharp observables (normalized PV measures) in relation to smearing by a
Markov kernel are studied. It is shown that for a sharp observable $ P $ defined on a …

[PDF][PDF] On the coexistence of position and momentum observables

C Carmeli, T Heinonen, A Toigo - arxiv preprint quant-ph/0504168, 2005 - arxiv.org
arxiv:quant-ph/0504168v1 22 Apr 2005 Page 1 arxiv:quant-ph/0504168v1 22 Apr 2005 On
the coexistence of position and momentum observables Claudio Carmeli†, Teiko Heinonen‡ …

Optimal measurements in quantum mechanics

T Heinonen - Physics Letters A, 2005 - Elsevier
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