Research and publications

Published research, checkable.

Journal articles, preprints and patent filings in quantum gravity, quantum information, cosmology and nonlinear dynamics.

Research area

Quantum gravity & cosmology

Loop quantum gravity and cosmology, conformal cyclic cosmology, black holes, dark energy, group field theory.

Research area

Quantum information & computing

Quantum error correction, quantum circuits, feasibility of quantum approaches.

Research area

Nonlinear dynamics & modeling

Limit cycles, bifurcations, sensor-based and topological modeling.

Recognition

Gravity Research Foundation, 2026

Honorable mention for a research essay.

Training

WIPO specialized course, 2025

Essentials of patents, World Intellectual Property Organization.

Journal articles and preprints

Earlier papers are published under the name S. Natarajan and later ones under N. Shriethar. Both names refer to the same researcher, Dr. Natarajan Shriethar. Last updated October 2026.

2026 · Journal article · Quantum gravity & cosmology

The Gravitational Bound on Quantum Complexity: Why Spacetime Resists Large-Scale Entanglement

N. Shriethar — International Journal of Modern Physics D
quantum complexityentanglement
2026 · Preprint · Quantum gravity & cosmology

Numerical Analysis of the One-Loop Hessian in the SU(2)-Restricted Spinfoam Vertex: Scaling, Saddle-Point Structure, and Implications for the BH-to-WH Transition

S. Natarajan — HAL preprint hal-05611775
spinfoamnumerical analysis
2026 · Journal article · Quantum gravity & cosmology

Vanishing into the Bulk: A Higher-Dimensional Explanation for the Disappearance of PHL 293B-LBV

S. Natarajan — Revista Mexicana de Física 72(3), 030802-030817
higher dimensionsastrophysics
2025 · Journal article · Sensing & applied modeling

Topology-Based Activity Recognition: Stratified Manifolds and Separability in Sensor Space

S. Natarajan, M. Manikandan — Computer Research and Modeling 17(5), 829-850
topologysensor data
2025 · Journal article · Nonlinear dynamics

Limit cycles and period-doubling bifurcations in a van der Pol-type triple pendulum with spring coupling

S. Natarajan — Cybernetics and Physics 14(2), 174-190
limit cyclesbifurcationpendulum
2025 · Journal article · Quantum gravity & cosmology

Testing loop quantum gravity with Gaia BH1: predicted orbital anomaly, gravitational wave echoes, and thermodynamic shifts

N. Shriethar — Astronomical and Astrophysical Transactions 35(1), 107-126
LQGGaia BH1
2024 · Journal article · Quantum information & computing

Quantum Probabilistic Space Analysis for Enhanced Two-Wheeler Traffic Safety: From Classical Limitations to Advanced Quantum Circuits

S. Natarajan — Cybernetics and Physics 13(4), 302-322
quantum circuitstraffic safety
2024 · Journal article · Sensing & applied modeling

Evaluation of Various Parameters of Nattadavu in Bharatanatyam Using a Raspberry Pi-Based Sensor

A. Ramya, S. Natarajan, A. Nithya, M. S. Sarala, S. Karuppuchamy — MOMENTO (68), 11-26
Raspberry Pisensors
2022 · Journal article · Sensing & applied modeling

Raspberry Pi-Based Sensor Network for Multi-Purpose Nonlinear Motion Detection in Laboratories Using MEMS

N. Shriethar, N. Chandramohan, C. Rathinam — MOMENTO (65), 52-64
MEMSRaspberry Pi
2022 · Journal article · Sensing & applied modeling

Raspberry Pi based automatic temperature measurement and logging system for solar thermal purposes

N. Shriethar, P. Letchoumanane, S. Solai — MOMENTO (64), 11-15
solar thermalRaspberry Pi
2022 · Journal article · Quantum gravity & cosmology

Cyclic phantom energy dominated cosmological scenario from loop quantum cosmology

S. Natarajan — Mathematical Physics and Computer Modeling 25(1)
LQCphantom energy
2021 · Journal article · Quantum gravity & cosmology

Conformal evolution of phantom dominated final stages of the universe in higher dimensions

S. Natarajan, R. Chandramohan — Canadian Journal of Physics 99(1), 1-9
CCChigher dimensions
2020 · Journal article · Quantum gravity & cosmology

Conformal Cyclic Evolution of the Universe: a Loop Quantum Gravity Perspective

N. Shriethar, C. Rathinam — International Journal of Theoretical Physics 59(12), 3995-4012
CCCLQG
2020 · Journal article · Quantum gravity & cosmology

Conformal cyclic evolution of phantom energy dominated universe

S. Natarajan, R. Chandramohan, R. Swaminathan — Revista Mexicana de Física 66(2), 209-223
CCCphantom energy
2019 · Journal article · Quantum gravity & cosmology

Resolution of big rip singularity in loop quantum cosmology and bouncing scenarios

S. Natarajan, R. Chandramohan — Journal of Applied Physical Science International 11(1), 30-37
LQCbig rip
2019 · Journal article · Quantum gravity & cosmology

Non singular initial stages of the universe

S. Natarajan, R. Chandramohan — International Journal of Management, Technology and Engineering 9(1), 1828-1833
bounce
2018 · Journal article · Quantum gravity & cosmology

Gravity or Complexity?

S. Natarajan, R. Chandramohan — International Journal of Scientific Research in Physics and Applied Sciences 6(5), 75-79
complexity
2018 · Journal article · Quantum gravity & cosmology

A universe from nothing or big bounce?

S. Natarajan, R. Chandramohan — International Journal of Research and Analytical Reviews 5(4), 573-577
bounce
2017 · Journal article · Sensing & applied modeling

Low Cost Temperature Logging System using Raspberry Pi

S. Natarajan, A. Deepika, I. Pradeeba, R. Chandramohan — International Research Journal of Engineering and Technology 4(4), 254-258
Raspberry Pitemperature logging

Patent filings

  • Motion-Adaptive Radiobiological Optimization System and Method of Working Thereof
    Provisional patent published in India, July 2026
  • Motion-Adaptive Radiobiological Optimization System and Method of Working Thereof
    Provisional patent submitted in the USA
  • System and Method for Deterministic, Contactless Patient Monitoring Utilizing Re-Purposed 5G/6G Sub-THz Radio Access Network Infrastructure with Context-Aware Edge AI
    Published in India, July 2026
  • System and Method for Closed-Loop Patient Monitoring and Predictive Clinical Decision
    Published in India, July 2026

Profiles: Google Scholar ResearchGate

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