The connections between quantum physics and cosmology

Les connexions entre physique quantique et cosmologie

IN BRIEF Quantum physics and cosmology were born at the beginning of the 20th century. Quantum cosmology describes the early moments of the Universe. The concept of quantum multiverse suggests an infinity of universes. Quantum gravity raises many questions about the nature of the Universe. Big Bang and particle physics: essential links. Projects on loop … Read more

Quantum fluctuations and their role in the universe

Les fluctuations quantiques et leur rôle dans l'univers

IN BRIEF Quantum fluctuations: spontaneous energy variations in the quantum vacuum. Influence on the formation of structures in the universe. Elementary particles: rapid emergence and annihilation. Uncertainty principles: impact on quantum theory. Primordial universe: crucial role in cosmic inflation. Quantum vacuums: concepts of fluctuating energy zones. Applications in cosmology and particle physics. Quantum fluctuations represent … Read more

How mathematics is used in quantum physics

Comment les mathématiques sont utilisées en physique quantique

IN BRIEF Applied mathematics to quantum mechanics Use of complex numbers to model wave-like phenomena Emission of electrons by metallic materials under light radiation Applications of group theory to describe the symmetries of physical systems Solutions described by periodic vibration modes Impact of mathematics on advances in quantum physics Mathematics plays a fundamental role in … Read more

Wave-particle duality: explanations and examples

La dualité ondeparticule : explications et exemples

IN BRIEF Wave-particle duality: a fundamental concept in physics. Light behaves both as a wave and as a particle. Examples of experiments: diffraction and interference. Each particle is associated with a specific wave (wavelength). The wave model and the particle model apply depending on the context. Implications for the structure of the atom. Importance of … Read more

L’effet Casimir et ses implications théoriques

L'effet Casimir et ses implications théoriques

IN BRIEF Casimir Effect: quantum phenomenon predicted by Hendrik Casimir in 1948. Attractive force between two conductive plates in a perfect vacuum. Based on fluctuations of the electromagnetic field. Highlights the physical reality of vacuum and its interaction with matter. Can lead to repulsive phenomena under certain conditions. Related to divergent series and the modes … Read more

Philosophical implications of quantum physics

Les implications philosophiques de la physique quantique

IN BRIEF Philosophy of Quantum Physics: exploration of theoretical foundations. Interpretations: divergence between quantum models, such as the Copenhagen interpretation. Quantum Entanglement: fundamental link between distant particles, with practical implications. Philosophical Debates: discussions on the nature of reality and the predictability of events. Quantum Reality: questioning what we consider real. Elementary Phenomena: study of interactions … Read more

Quantum physics in simple terms

La physique quantique en termes simples

IN BRIEF Definition: Quantum physics is a set of theories developed in the 20th century to explain the behavior of atoms and particles. Scientific revolution: Considered one of the two great revolutions of the twentieth century, along with the theory of relativity. Nature of interactions: It describes how energy exchanges happen in discrete values called … Read more