IN BRIEF Cosmological Model: Mathematical description of the history of the Universe. Friedmann Equations: Foundation of modern cosmological models. Cosmology: Study of the structures and evolution of the Universe. Quantum Physics: Basis of particle and matter theories. Hubble Constant: Measurement of the expansion of the Universe. Differential and Integral Calculus: Key mathematical tools in celestial … Read more
IN BRIEF String theory: fundamental theoretical framework in physics. The fundamental objects are vibrating strings. Elementary particles correspond to the different vibrations of the strings. Famous for its ambition to be the “theory of everything”, unifying the forces of nature. Involves 11 dimensions in certain formulations. A necessary popularization to make science accessible. Exploration of … Read more
IN BRIEF Theory of Everything: quest for unification of fundamental interactions. Bringing together general relativity and quantum mechanics: a major challenge of modern physics. History: the search for a unitary theory initiated by giants like Einstein. Four forces of nature: ultimate goal of physics. Contemporary theories: at the forefront are string theory and unified fields. … Read more
IN BRIEF Hidden dimensions in the Universe: concepts and theories. Mechanism to confer mass to neutrinos. Physics of particles confined on surfaces called branes. Exploration of hidden variables in quantum physics. Kaluza-Klein theory and additional dimensions. Search for particles of the standard model and the graviton. Links with concepts of multiverse and time travel. Attempts … Read more
IN BRIEF Definition: A thought experiment is a hypothetical method used to explore complex concepts in theoretical physics. Steps: Includes the formulation of hypotheses, the description of imaginary situations, and the analysis of results. Usefulness: Helps to clarify theories, illustrate physical principles, and challenge preconceived ideas. Famous examples: include Galileo’s experiments on falling bodies and … Read more
IN BRIEF Two approaches in physics: Classical Mechanics and Quantum Mechanics Classical Mechanics: motion of macroscopic bodies (laws of Newton) Quantum Mechanics: study of subatomic particles and their behaviors. Importance of energy quantization in quantum mechanics. Orbitals: description of the electron cloud and probability of a particle’s presence. Convergence between the two mechanics at specific … Read more
IN BRIEF Measurement of gravity at the microscopic scale achieved Research on quantum gravity to unify fundamental forces Quest for a theory unifying general relativity and quantum physics Challenges of particle interactions at the microscopic scale Loop quantum gravity: discrete spacetime Potential impact on cryptography and computability Exploration of issues surrounding quantum measurement and entanglement … Read more
IN BRIEF Start with classical physics. Avoid quantum mechanics and the theory of relativity at the beginning. Focus on experimental or computational research projects. Have a minimum background in mathematics. Consider a Master’s in theoretical physics as the classic pathway. Acquire concepts of wave function in quantum physics. Take university courses to deepen knowledge. Explore … Read more