Charge acceleration and field-lines curvature: A fundamental symmetry and consequent asymmetries

Avshalom C. Elitzur, Eliahu Cohen, Paz Beniamini

פרסום מחקרי: פרק בספר / בדוח / בכנספרסום בספר כנסביקורת עמיתים

תקציר

When a charge accelerates, its field-lines curve in a typical pattern. This pattern resembles the curvature induced on the field-lines by a neighboring charge. Not only does the latter case involve a similar curvature, it moreover results in attraction/repulsion. This suggests a hitherto unnoticed causal symmetry: charge acceleration ⇔ field curvature. We prove quantitatively that these two phenomena are essentially one and the same. The field stores some of the charge's mass, yet it is extended in space, hence when the charge accelerates, inertia makes the field lag behind. The resulting stress in the field stores some of the charge's kinetic energy in the form of potential energy. The electrostatic interaction is the approximate mirror image of this process: The potential energy stored within the field turns into the charge's kinetic energy. This partial symmetry offers novel insights into two debated issues in electromagnetism The question whether a charge radiates in a gravitational field receives a new twist: If all the charge's field-lines end with opposite charges that also resist gravity, no radiation is expected. Similarly for the famous absence of a physical manifestation of the Maxwell equations' advanced solution: Just as Einstein argued, the reason for this absence is probabilistic rather than reflecting some inherent time-asymmetry. Despite the apparent equivalence between the "ontological" and "instrumentalist" viewpoints concerning the physical reality of field-lines, there may be cases in which their experimental predictions differ.

שפה מקוריתאנגלית
כותר פרסום המארחSecond Law of Thermodynamics
כותר משנה של פרסום המארחStatus and Challenges
עמודים221-244
מספר עמודים24
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 2011
פורסם באופן חיצוניכן
אירוע2nd Law of Thermodynamics: Status and Challenges - San Diego, CA, ארצות הברית
משך הזמן: 14 יוני 201115 יוני 2011

סדרות פרסומים

שםAIP Conference Proceedings
כרך1411
ISSN (מודפס)0094-243X
ISSN (אלקטרוני)1551-7616

כנס

כנס2nd Law of Thermodynamics: Status and Challenges
מדינה/אזורארצות הברית
עירSan Diego, CA
תקופה14/06/1115/06/11

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