. ed - p h ] 1 4 M ar 1 99 9 Is the number of Photons a Classical Invariant ?
نویسندگان
چکیده
We describe an apparent puzzle in classical electrodynamics and its resolution. It is concerned with the Lorentz invariance of the classical analog of the number of photons.
منابع مشابه
8 M ar 1 99 9 Is the number of Photons a Classical Invariant ?
We describe an apparent puzzle in classical electrodynamics and its resolution. It is concerned with the Lorentz invariance of the classical analog of the number of photons.
متن کامل2 0 A pr 1 99 9 Is the number of Photons a Classical Invariant ?
We describe an apparent puzzle in classical electrodynamics and its resolution. It is concerned with the Lorentz invariance of the classical analog of the number of photons.
متن کاملar X iv : h ep - p h / 99 08 44 8 v 1 2 4 A ug 1 99 9 Production of Low Mass Electron Pairs Due to the Photon - Photon Mechanism in Central Collisions
We calculate the probability for dilepton production in central relativistic heavy ion collisions due to the γγ mechanism. This is a potential background to more interesting mechanisms. We find that this mechanism is negligible in the CERES experiments. Generally, the contribution due to this mechanism is small in the central region, while it can be large for small invariant masses and forward ...
متن کاملar X iv : m at h / 99 07 02 3 v 2 [ m at h . Q A ] 7 D ec 1 99 9 Propagator on the h – deformed Lobachevsky plane
The action of the isometry algebra Uh(sl(2)) on the h–deformed Lobachevsky plane is found. The invariant distance and the invariant 2–point functions are shown to agree precisely with the classical ones. The propagator of the Laplacian is calculated explicitely. It is invariant only after adding a “non–classical” sector to the Hilbert space. PACS classification 11.10.Kk, 03.65.Fd John.Madore@th...
متن کاملar X iv : h ep - t h / 93 11 05 4 v 1 9 N ov 1 99 3 Preprint - KUL - TF - 93 / 47 hep - th / 9311054 November 1993
A topological gravity is obtained by twisting the effective (2, 0) supergravity. We show that this topological gravity has an infinite number of BRST invariant quantities with conformal weight 0. They are a tower of OSp(2, 2) multiplets and satisfy the classical exchange algebra of OSp(2, 2). We argue that these BRST invariant quantities become physical operators in the quantum theory and their...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1999