منابع مشابه
Slow light with persistent hole burning
R. N. Shakhmuratov, A. Rebane, P. Mégret, and J. Odeurs Instituut voor Kernen Stralingsfysica, Katholieke Universiteit Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium Optique Nonlinéaire Théorique, Université Libre de Bruxelles, Campus Plaine CP 231, B-1050 Bruxelles, Belgium Kazan Physical Technical Institute, Russian Academy of Sciences, 10/7 Sibirsky trakt, Kazan 420029 Russia Physics ...
متن کاملPhotochemical Hole-burning in Photosynthetic Reaction Centers
The change in absorbance (hole spectrum) of the primary electron donor (P870) in bacterial photosynthetic reaction centers has been studied at 1.5-2.1 K following narrow-band excitation at several wavelengths within the P870 absorption band. The hole width is very large, suggesting a homogeneous linewidth on the order of 200-300 cm-‘. Possible interpretations of this highly unusual result, incl...
متن کاملA Comment on Black Hole Entropy in String Theory
In this note, we extend the string theoretic calculation of the black hole entropy, first performed by Susskind and Uglum, away from the infinite mass limit. It is shown that the result agrees with that obtained from the classical action of string theory, using the Noether charge method developed by Wald. Also shown in the process is the equivalence of two general techniques for finding black h...
متن کاملA Comment on Logarithmic Corrections to Black Hole Entropy
There has been substantial interest, as of late, in the quantum-corrected form of the Bekenstein–Hawking black hole entropy. The consensus viewpoint is that the leading-order correction should be a logarithm of the horizon area; however, the value of the logarithmic prefactor remains a point of notable controversy. Very recently, Hod has employed statistical arguments that constrain this prefac...
متن کاملComment on "Black hole constraints on varying fundamental constants".
In the Letter [1] (also [2]) there is a claim that the generalised second law of thermodynamics (entropy increase) for black holes provides some limits on the rate of variation of the fundamental constants of nature (electric charge e, speed of light c, etc.). We have come to a different conclusion. The results in [1, 2] are based on assumption that mass of a black hole does not change without ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 1999
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.479295