Zobrazeno 1 - 10
of 179
pro vyhledávání: '"Iwo Bialynicki-Birula"'
Publikováno v:
Physics, Vol 5, Iss 3, Pp 862-872 (2023)
In this paper we extend the Zeldovich formula, which was originally derived for the free electromagnetic field and was interpreted as the number of photons. We show that our extended formula gives a universal dimensionless measure of the overall stre
Externí odkaz:
https://doaj.org/article/30c8e8c61f6042bc9a7bfa4e6e699218
Autor:
Iwo Bialynicki-Birula
Publikováno v:
New Journal of Physics, Vol 23, Iss 11, p 118001 (2021)
It is pointed out that the authors of the paper Li et al (2020 New J. Phys. 22 113019) have misinterpreted the Dirac equation by not taking into account that it describes not only electrons but also positrons.
Externí odkaz:
https://doaj.org/article/c236520225004bb889ca74aba49266f3
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 038001 (2020)
In our Comment we question the validity of the claim made by Campos and Cabrera [Phys. Rev. Res. 2, 013051 (2020)2643-156410.1103/PhysRevResearch.2.013051] that their solutions of the Dirac equation in an external time-dependent electromagnetic field
Externí odkaz:
https://doaj.org/article/783610138a294f77a73ff7ade88d9513
Publikováno v:
New Journal of Physics, Vol 21, Iss 7, p 073036 (2019)
The Heisenberg uncertainty relation is derived for relativistic electrons described by the Dirac equation. The standard nonrelativistic lower bound 3/2ℏ is attained only in the limit and the wave function that reproduces this value is singular. At
Externí odkaz:
https://doaj.org/article/02d6bc62788e4072a38e841a69795d65
Publikováno v:
New Journal of Physics, Vol 21, Iss 11, p 119502 (2019)
Externí odkaz:
https://doaj.org/article/8acc0d3c25b44117b5cfc708977ab67d
Publikováno v:
New Journal of Physics, Vol 18, Iss 2, p 023022 (2016)
Spinorial formalism is used to map every electromagnetic wave into the gravitational wave (within the linearized gravity). In this way we can obtain the gravitational counterparts of Bessel, Laguerre-Gauss, and other light beams carrying orbital angu
Externí odkaz:
https://doaj.org/article/c9137a4732174aad9829e41e82df690c
Autor:
Iwo Bialynicki-Birula
Publikováno v:
New Journal of Physics, Vol 16, Iss 11, p 113056 (2014)
It is pointed out that there exists an unambiguous definition of locality that enables one to distinguish local and nonlocal quantities. Observables of both types coexist in quantum optics, but one must be very careful when attempting to measure them
Externí odkaz:
https://doaj.org/article/c03a4535eefb4aeb913c53054995de8b
Publikováno v:
Journal of Physics A: Mathematical and Theoretical. 56:138001
We present further arguments which show that the backflow has a universal character. It is not restricted to quantum theory and it appears in many theories (quantum or classical). It is a general property of waves propagating in any number of dimensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04d2ab2d1d164a8846ed688a3bc06172
https://doi.org/10.1088/1751-8121/acbd72
https://doi.org/10.1088/1751-8121/acbd72
We show that, contrary to the statements made by many authors, the backflow is not a nonclassical effect. The backflow is a characteristic feature of solutions of the wave equations: quantum and classical. We present simple solutions of the Dirac equ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36dd789481a7fd029b603558d785e428
Autor:
Iwo Bialynicki-Birula, Adam Prystupiuk
Publikováno v:
Physical Review A. 103
This work completes the program started in \cite{bb1,bb2,bb3} to derive the Heisenberg uncertainty relation for relativistic particles. Sharp uncertainty relations for massive relativistic particles with spin 0 and spin 1 are derived. The main conclu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cf103075db6e3a92a8eabd3768fd751
https://doi.org/10.1103/physreva.103.052211
https://doi.org/10.1103/physreva.103.052211