Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Flaminia Giacomini"'
Publikováno v:
Quantum, Vol 8, p 1335 (2024)
In physics, it is crucial to identify operational measurement procedures to give physical meaning to abstract quantities. There has been significant effort to define time operationally using quantum systems, but the same has not been achieved for spa
Externí odkaz:
https://doaj.org/article/042b300109c449e18a00b5a5831e8a88
Publikováno v:
Quantum, Vol 7, p 1142 (2023)
When gravity is sourced by a quantum system, there is tension between its role as the mediator of a fundamental interaction, which is expected to acquire nonclassical features, and its role in determining the properties of spacetime, which is inheren
Externí odkaz:
https://doaj.org/article/673ebf9afad947e6bf409c670a359127
Publikováno v:
Quantum, Vol 7, p 1088 (2023)
Given the importance of quantum reference frames (QRFs) to both quantum and gravitational physics, it is pertinent to develop a systematic method for switching between the descriptions of physics relative to different choices of QRFs, which is valid
Externí odkaz:
https://doaj.org/article/4ae9b8bdc7bf481e8bc5f81569ec3129
Publikováno v:
Quantum, Vol 7, p 958 (2023)
Field mediated entanglement experiments probe the quantum superposition of macroscopically distinct field configurations. We show that this phenomenon can be described by using a transparent quantum field theoretical formulation of electromagnetism a
Externí odkaz:
https://doaj.org/article/7262be4552c44970b5340b0a1c5f2763
Publikováno v:
Quantum, Vol 7, p 946 (2023)
Atomic clock interferometers are a valuable tool to test the interface between quantum theory and gravity, in particular via the measurement of gravitational time dilation in the quantum regime. Here, we investigate whether gravitational time dilatio
Externí odkaz:
https://doaj.org/article/e3d1d1ebda6b4b278ef9ec98370688c3
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-12 (2020)
Analysing the space-time metric of quantum phenomena is complicated by the absence of a consistent theory of quantum gravity. Here, the authors show how to describe the space-time metric for multiple observers who are keeping time with quantum clocks
Externí odkaz:
https://doaj.org/article/80f8cba5a3174919bd3024d844e9299f
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-13 (2019)
Reference frames are ultimately physical systems, and thus it should be possible to quantise them in a consistent way. Here, the authors use a relational formalism to quantise a reference frame and show the covariance of physical laws under transform
Externí odkaz:
https://doaj.org/article/e1e753c05d72476b859e14424d85ef6c
Publikováno v:
Quantum, Vol 6, p 779 (2022)
Recently, table-top experiments involving massive quantum systems have been proposed to test the interface of quantum theory and gravity. In particular, the crucial point of the debate is whether it is possible to conclude anything on the quantum nat
Externí odkaz:
https://doaj.org/article/fe9df8e0eafd4f9ab175a529b1eb377a
Publikováno v:
Physics Letters B, Vol 784, Iss , Pp 50-55 (2018)
We report an investigation of the Snyder noncommutative spacetime and of some of its most natural generalizations, also looking at them as a powerful tool for comparing different notions of dimensionality of a quantum spacetime. It is known that (gen
Externí odkaz:
https://doaj.org/article/b1a0a096295e4d218b98621f0a29d5b0
Autor:
Veronika Baumann, Flavio Del Santo, Alexander R. H. Smith, Flaminia Giacomini, Esteban Castro-Ruiz, Caslav Brukner
Publikováno v:
Quantum, Vol 5, p 524 (2021)
The quantum measurement problem can be regarded as the tension between the two alternative dynamics prescribed by quantum mechanics: the unitary evolution of the wave function and the state-update rule (or "collapse") at the instant a measurement tak
Externí odkaz:
https://doaj.org/article/1a7f1603e2a748dba388bcb039611ba7