Zobrazeno 1 - 10
of 289
pro vyhledávání: '"Lahti, Pekka"'
We study joint measurability of quantum observables in open systems governed by a master equation of Lindblad form. We briefly review the historical perspective of open systems and conceptual aspects of quantum measurements, focusing subsequently on
Externí odkaz:
http://arxiv.org/abs/2309.06040
Autor:
Lahti, Pekka, Pellonpää, Juha-Pekka
Publikováno v:
Int J Theor Phys 62, 170 (2023)
We search for a possible mathematical formulation of some of the key ideas of the relational interpretation of quantum mechanics and study their consequences. We also briefly overview some proposals of relational quantum mechanics for an axiomatic re
Externí odkaz:
http://arxiv.org/abs/2207.01380
Publikováno v:
Foundations of Physics, 49(6), 506-531 (2019)
We review the notion of complementarity of observables in quantum mechanics, as formulated and studied by Paul Busch and his colleagues over the years. In addition, we provide further clarification on the operational meaning of the concept, and prese
Externí odkaz:
http://arxiv.org/abs/1905.06254
Publikováno v:
J. Phys. A: Math. Theor. 50 (2017) 375301
We show that number and canonical phase (of a single mode optical field) are complementary observables. We also bound the measurement uncertainty region for their approximate joint measurements.
Externí odkaz:
http://arxiv.org/abs/1702.02070
Autor:
Lahti, Pekka1 (AUTHOR), Pellonpää, Juha-Pekka2 (AUTHOR) juhpello@utu.fi
Publikováno v:
International Journal of Theoretical Physics. Aug2023, Vol. 62 Issue 8, p1-20. 20p.
Autor:
Cassinelli, Gianni, Lahti, Pekka
In this paper we use the framework of generalized probabilistic theories to present two sets of basic assumptions, called axioms, for which we show that they lead to the Hilbert space formulation of quantum mechanics. The key results in this derivati
Externí odkaz:
http://arxiv.org/abs/1508.03709
Publikováno v:
Journal of Mathematical Physics 55, 042111 (2014)
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 error/disturbance tradeoff first discussed heuristically by Heisenberg. Here w
Externí odkaz:
http://arxiv.org/abs/1312.4392
Publikováno v:
Rev. Mod. Phys. 86, 1261 (2014)
Recent years have witnessed a controversy over Heisenberg's famous error-disturbance relation. Here we resolve the conflict by way of an analysis of the possible conceptualizations of measurement error and disturbance in quantum mechanics. We discuss
Externí odkaz:
http://arxiv.org/abs/1312.4393
Publikováno v:
Physical Review A 89, 012129 (2014)
Reports on experiments recently performed in Vienna [Erhard et al, Nature Phys. 8, 185 (2012)] and Toronto [Rozema et al, Phys. Rev. Lett. 109, 100404 (2012)] include claims of a violation of Heisenberg's error-disturbance relation. In contrast, we h
Externí odkaz:
http://arxiv.org/abs/1311.0837
Publikováno v:
Physical Review Letters 111, 160405 (2013)
While the slogan "no measurement without disturbance" has established itself under the name Heisenberg effect in the consciousness of the scientifically interested public, a precise statement of this fundamental feature of the quantum world has remai
Externí odkaz:
http://arxiv.org/abs/1306.1565