Vacuum Breakdown

نویسندگان

چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Spontaneous Breakdown of the Vacuum

In his 1951 paper, J. Schwinger 2 predicted that an intense static electric field will break down the vacuum to produce ee pairs. This occurs when the field-strength approaches the critical value Ec = m c/eh̄ = 1.3× 10 V/cm. We argue that this effect has been observed in the scattering of high energy electrons from the focus of an intense laser pulse . The experimental conditions 1 differ from t...

متن کامل

Vacuum Breakdown near a Black Hole Charged by Hypercritical Accretion

We consider a black hole accreting spherically from the surrounding medium. If accretion produces a luminosity close to the Eddington limit the hole acquires a net charge so that electrons and ions can fall with the same velocity. The condition for the electrostatic field to be large enough to break the vacuum near the hole horizon translates into an upper limit for the hole mass, M ∼ 6.6 × 10 ...

متن کامل

Ultra - strong Elelctric Fields and Vacuum Breakdown : Search for an Astrophysical Scenario

— In some models of γ-ray bursts super-strong electric fields (E ∼ 10 14 statvolt cm −1) have been surmized. Such large fields may provide copious pair production through vacuum polarization. Here we examine various astrophysical scenarios where huge electric field can be present. It is shown that when the conditions for quantistic vacuum breakdown are met, pair creation through conventional pr...

متن کامل

Effect of RF Parameters on Breakdown Limits in High-Vacuum X-Band Structures

RF breakdown is one of the major factors determining performance of high power rf components and rf sources. RF breakdown limits working power and produces irreversible surface damage. The breakdown limit depends on the rf circuit, structure geometry, and rf frequency. It is also a function of the input power, pulse width, and surface electric and magnetic fields. In this paper we discuss multi...

متن کامل

Vacuum defects without a vacuum

Topological defects can arise in symmetry breaking models where the scalar field potential V (φ) has no minima and is a monotonically decreasing function of |φ|. The properties of such vacuumless defects are quite different from those of the “usual” strings and monopoles. In some models such defects can serve as seeds for structure formation, or produce an appreciable density of miniblack holes...

متن کامل

ذخیره 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: Nature

سال: 1965

ISSN: 0028-0836,1476-4687

DOI: 10.1038/206670a0