Temat: 11.15.-q - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Lifetime Broadening of a Nuclear Magnetic Resonance Peak under Minimal Length Uncertainty Analysis
Autorzy:: Farmany, A.
Powiązania:: https://bibliotekanauki.pl/articles/1538633.pdf
Data publikacji:: 2010-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 11.30.Er
11.25.Sq
11.15.-q
Opis:: We calculate the lifetime broadening of a nuclear magnetic resonance peak based on the minimal length uncertainty. The application of high resolution nuclear magnetic resonance spectroscopy and its extension to detection of the signature of minimal length scale is explored. We show that in a high precision spectrometry test, the lifetime broadening is a quadratic function with energy.
Źródło:: Acta Physica Polonica A; 2010, 117, 3; 454-456
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Local Gauge and Magnetic Translation Groups
Autorzy:: Florek, W.
Powiązania:: https://bibliotekanauki.pl/articles/1964708.pdf
Data publikacji:: 1997-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 11.15.Ha
05.50.+q
71.45.-d
02.20.-a
Opis:: The magnetic translation group was introduced as a set of operators T(R)=exp[-iR·(p-eA/c)/h]. However, these operators commute with the Hamiltonian for an electron in a periodic potential and a uniform magnetic field if the vector potential A (the gauge) is chosen in a symmetric way. It is showed that a local gauge field A$\text{}_{R}$(r) on a crystal lattice leads to operators, which commute with the Hamiltonian for any (global) gauge field A = A(r). Such choice of the local gauge determines a factor system ω(R,R') = T(R)T(R')T(R+R')$\text{}^{-1}$, which depends on a global gauge only. Moreover, for any potential A a commutator T(R)T(R')T(R)$\text{}^{-1}$T(R')$\text{}^{-1}$ depends only on the magnetic field and not on the gauge.
Źródło:: Acta Physica Polonica A; 1997, 92, 2; 399-402
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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