. po p - ph ] 2 1 O ct 1 99 7 Faster Than Light ?
نویسنده
چکیده
Maxwell’s equations are a set of first order partial differential equations describing the behavior of the electric and magnetic fields generated by distributions of charges and currents. Such equations also possess solutions for the case where there are no charges nor currents. The simplest solutions of this kind, discovered by Maxwell himself, describe electromagnetic field configurations which we will call light-solutions (LS ). Light-solutions propagate in empty space with a particular velocity c (c ≈ 300, 000 km/s in MKS units). The simplest, easiest to find LS s are the plane wave solutions (PW ), which have the following important characteristics:
منابع مشابه
ar X iv : g r - qc / 9 80 50 03 v 2 1 4 O ct 1 99 8 Superluminal travel requires negative energies
I investigate the relationship between faster-than-light travel and weakenergy-condition violation, i.e., negative energy densities. In a general spacetime it is difficult to define faster-than-light travel, and I give an example of a metric which appears to allow superluminal travel, but in fact is just flat space. To avoid such difficulties, I propose a definition of superluminal travel which...
متن کاملar X iv : h ep - p h / 97 10 50 2 v 1 2 8 O ct 1 99 7 Hadron Spectroscopy from the Lattice
Lattice QCD determinations appropriate to hadron spectroscopy are reviewed with emphasis on the glueball and hybrid meson states in the quenched approximation. Hybrids are discussed for heavy and for light quarks. The effects of sea quarks (unquenching) are explored. Heavy-light systems are presented particularly excited B mesons.
متن کاملRTES-03 Interfaces.indd
[ B ur ns 20 07 ] B u rn s, A & W el lin gs , A C o n cu rr en t a n d R ea l-T im e Pr o gr am m in g in A d a, e d it io n C am b ri d ge U n iv er si ty P re ss 2 00 7 [ M o to ro la 19 96 ] M o to ro la Ti m e Pr o ce ss in g U n it R ef er en ce M an u al 1 99 6 p p . 1 -1 42 [ M o to ro la 20 00 ] M o to ro la M PC 56 5 & M PC 56 6 2 00 0 p p . 1 -1 31 2 [ P ea co ck 19 97 ] Pe ac o ck , ...
متن کاملs . po p - ph ] 1 9 N ov 1 99 7 Faster Than Light ?
In this paper we present a pedestrian review of the theoretical fact that all relativistic wave equations possess solutions of arbitrary velocities 0 ≤ v < ∞. We discuss some experimental evidences of v ≥ c transmission of electromagnetic field configurations and the importance of these facts with regard to the principle of relativity. Maxwell’s equations are a set of first order partial differ...
متن کاملar X iv : h ep - p h / 99 10 50 6 v 1 2 7 O ct 1 99 9 hep - ph / 9910506 SHEP 99 / 18 Fine - Tuning Constraints on Supergravity Models
We discuss fine-tuning constraints on supergravity models. The tightest constraints come from the experimental mass limits on two key particles: the lightest CP even Higgs boson and the gluino. We also include the lightest chargino which is relevant when universal gaugino masses are assumed. For each of these particles we show how fine-tuning increases with the experimental mass limit, for four...
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 1997