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Abstract <p>The Minkowski vacuum is perceived by an accelerated observer as a medium with a finite temperature, which is the essence of the well-known Unruh effect. It turns out that in addition to temperature, a finite shear viscosity appears in the accelerated system, and this viscosity satisfies the lower limit from string theory <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\eta/s=1/4\pi\)</EquationSource> <!--NuclPhys2560084Lapygin-m1--> </InlineEquation>. We describe the derivation of the corresponding shear viscosity for electromagnetic field.</p>

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Unruh Effect and Minimum Viscosity

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • Dmitry D. Lapygin,
  • Georgy Yu. Prokhorov

摘要

Abstract

The Minkowski vacuum is perceived by an accelerated observer as a medium with a finite temperature, which is the essence of the well-known Unruh effect. It turns out that in addition to temperature, a finite shear viscosity appears in the accelerated system, and this viscosity satisfies the lower limit from string theory \(\eta/s=1/4\pi\) . We describe the derivation of the corresponding shear viscosity for electromagnetic field.