vacuum energy

Quantum fluctuations: spontaneous variations of vacuum energy

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At the heart of the infinitely small, quantum vacuum is not merely an absence of matter or energy, but a bubbling theater of fundamental phenomena. Quantum fluctuations, often perceived as spontaneous variations in the energy of the vacuum, illustrate this surprising reality: even in a perfectly empty space, quantum uncertainty induces perpetual agitation. The vacuum, … Read more

The Casimir effect: the energy of the vacuum between two metal plates

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At the heart of the mysteries of quantum physics, the “Casimir effect” intrigues with its counterintuitive origin: an invisible yet tangible force of attraction manifests between two metallic plates placed at an infinitesimal distance in a vacuum. This interaction results not from an electric charge or magnetization, but from the fluctuating nature of the vacuum … Read more