Ramanujan’s Old Formulae for Pi Echo in Modern Cosmology

 

Context:

  • A recent study by an Indian Statistical Institute (ISI), Bengaluru research team has drawn connections between Srinivasa Ramanujan’s mathematical formulae for π (pi) and concepts used in modern cosmology and theoretical physics.
  • The work highlights how abstract number theory and infinite series, developed over a century ago, are now relevant to understanding expanding universes, boiling fluids, and complex physical systems.

Key Highlights:

Ramanujan’s Mathematical Contributions

  • Srinivasa Ramanujan (1887–1920) developed highly efficient infinite series to calculate the value of π with remarkable speed and accuracy.
  • His formulae, published in 1914, remain among the fastest converging series for π even today.
  • Ramanujan worked largely in isolation, without formal training in modern mathematics.

Link with Modern Physics & Cosmology

  • Researchers found structural similarities between:
    • Ramanujan’s π-series, and
    • Correlation functions used in quantum field theory (QFT) and cosmology.
  • These mathematical structures help model:
    • Critical phenomena (sudden changes in physical systems)
    • Phase transitions (e.g., boiling of fluids)
    • Expanding universe models

Bridge Between Disciplines

  • Ramanujan’s equations resemble those used to describe:
    • Turbulent fluids
    • Quantum fluctuations
    • Cosmic expansion patterns
  • The study suggests that pure mathematics and physical reality may share deeper structural connections.

Historical Significance

  • Ramanujan’s work was once considered purely theoretical.
  • Similar historical parallels exist, such as Riemannian geometry later becoming essential for Einstein’s General Theory of Relativity.

Relevant Prelims Points:

  • Who: Srinivasa Ramanujan – Indian mathematical genius.
  • Key Concept: Infinite series for calculating π.
  • Institution: Indian Statistical Institute (ISI), Bengaluru.
  • Scientific Fields Linked:
    • Number theory
    • Quantum Field Theory
    • Cosmology
  • Important Terms:
    • Infinite series
    • Correlation functions
    • Critical phenomena
    • Phase transition
  • Significance: Demonstrates long-term relevance of pure mathematics.

Relevant Mains Points:

  • Science & Technology Perspective:
    • The study shows how theoretical mathematics can find applications decades later in advanced sciences.
    • Highlights interdisciplinary research between mathematics and cosmology.
  • Conceptual Clarity:
    • Quantum Field Theory (QFT): Framework to describe fundamental forces and particles.
    • Cosmology: Study of the origin, structure, and expansion of the universe.
    • Critical Phenomena: Points where small changes cause large effects in systems.
  • Indian Contributions to Global Knowledge:
    • Ramanujan’s legacy underscores India’s historical strength in abstract science.
    • Reinforces the importance of supporting basic research, even without immediate applications.
  • Way Forward:
    • Encourage investment in fundamental research.
    • Promote interdisciplinary collaboration between mathematicians and physicists.
    • Integrate history of science into STEM education to inspire innovation.

UPSC Relevance (GS-wise):

  • GS I: History of science and technology
  • GS III: Science & Technology, research and innovation
  • GS IV: Ethics – value of intellectual pursuit and knowledge for humanity

 

 

 

 

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