Massless fermions in dS_3 with a constant electric field produce a finite monotonic induced current: linear in E for weak fields, λ^{3/2} for strong fields.
Point splitting renormalization of Schwinger induced current in de Sitter spacetime
5 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
abstract
The covariant and gauge invariant calculation of the current expectation value in the homogeneous electric field in 1+3 dimensional de Sitter spacetime is shown. The result accords with previous work obtained by using adiabatic subtraction scheme. We therefore conclude the counterintuitive behaviors of the current in the infrared (IR) regime such as IR hyperconductivity and negative current are not artifacts of the renormalization scheme, but are real IR effects of the spacetime.
representative citing papers
Schwinger fermion production in axion inflation damps gauge fields, enabling observable primordial gravitational waves in LISA/ET bands while satisfying ΔN_eff limits and identifying a new damped-oscillation backreaction regime.
Abstract-only evaluation of a conjectured equivalence between entropy-positivity bounds and thermal grand potential decrease, with the full text unavailable due to a document mismatch.
Constant electric fields in de Sitter require a tachyonic photon mass ~H, yielding finite positive Schwinger currents for massless fermions and scalars after on-shell renormalization.
For massless conformally coupled matter, the stochastic Schwinger particle-production rate in de Sitter and FLRW spacetimes equals the flat-space rate, with no explicit Hubble dependence.
citing papers explorer
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Massless fermionic current of Schwinger pairs in 3D de Sitter spacetime
Massless fermions in dS_3 with a constant electric field produce a finite monotonic induced current: linear in E for weak fields, λ^{3/2} for strong fields.
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Gravitational waves from axion inflation in the gradient expansion formalism. Part II. Fermionic axion inflation
Schwinger fermion production in axion inflation damps gauge fields, enabling observable primordial gravitational waves in LISA/ET bands while satisfying ΔN_eff limits and identifying a new damped-oscillation backreaction regime.
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On Entropy Bounds for Irrelevant Operators
Abstract-only evaluation of a conjectured equivalence between entropy-positivity bounds and thermal grand potential decrease, with the full text unavailable due to a document mismatch.
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Classical constant electric fields and the Schwinger effect in de Sitter
Constant electric fields in de Sitter require a tachyonic photon mass ~H, yielding finite positive Schwinger currents for massless fermions and scalars after on-shell renormalization.
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Stochastic Schwinger Effect: de Sitter and beyond
For massless conformally coupled matter, the stochastic Schwinger particle-production rate in de Sitter and FLRW spacetimes equals the flat-space rate, with no explicit Hubble dependence.