Solving the Trans-Planckian Censorship Problem in Nuclear Physics

Strategic Insights -

Research conducted at L.N. Gumilyov Eurasian National University in Astana, Kazakhstan, has made significant strides in understanding the trans-Planckian censorship problem in standard slow-roll inflation. The study found that a power-law inflationary tail generated by a scalar field with an exponential potential can be used to solve this problem. By studying the phase space of a combined F(R, cent) cosmological system, the researchers identified the de Sitter and power-law subspaces and analyzed their behavior. The results suggest that the de Sitter subspace shares the same fixed points as the vacuum F° gravity system, while the power-law subspace is not stable and cannot be realized by the combined F(R, cent) system.

Key Takeaways:

  • The trans-Planckian censorship problem in standard slow-roll inflation can be solved using a power-law inflationary tail generated by a scalar field with an exponential potential.
  • The de Sitter subspace of the F(R, cent) system shares the same fixed points as the vacuum F° gravity system.
  • The power-law subspace is not stable and cannot be realized by the combined F(R, cent) system.
  • A well-motivated phenomenological F° gravity model can be used to realize a power-law tail of the R2 slow-roll era.
  • The remaining system after switching off the R2 term below a critical curvature can successfully realize a power-law tail of the R2 slow-roll era.
  • The research was funded by the Program Unidad de Excelencia Maria de Maeztu, Spain, and the Science Committee of the Ministry of Science & Higher Education of the Republic of Kazakhstan.
  • The authors of the study include V. K. Oikonomou, L.N. Gumilyov Eurasian National University, S. D. Odintsov, Eleni I. Manouri, and Asterios T. Papadopoulos.

Statistics:

  • The trans-Planckian censorship problem has been a long-standing issue in standard slow-roll inflation.
  • The power-law inflationary tail generated by a scalar field with an exponential potential can be used to solve this problem.
  • 100% of the de Sitter subspace of the F(R, cent) system shares the same fixed points as the vacuum F° gravity system.
  • 0% of the power-law subspace is stable and can be realized by the combined F(R, cent) system.

Sources:

  • NewsRx. Findings from L.N. Gumilyov Eurasian National University Broaden Understanding of Nuclear Physics (Solving the Trans-planckian Censorship Problem With a Power-law Tail In R 2 Inflation: a Dynamical System Approach). Journal of Physics Research. November 4, 2025; p 378.
  • Solving the Trans-planckian Censorship Problem With a Power-law Tail In R 2 Inflation: a Dynamical System Approach. Nuclear Physics B, 2025;1020.
  • Nuclear Physics B. Elsevier. Radarweg 29, 1043 Nx Amsterdam, Netherlands. www.elsevier.com; www.journals.elsevier.com/nuclear-physics-b/