Nollapisteenergia
Nollapisteenergia, Finnish term for zero-point energy, denotes the lowest possible energy of a quantum system. Even at absolute zero, quantum fluctuations ensure the ground state carries nonzero energy. In simple models like the quantum harmonic oscillator, the ground-state energy equals 1/2 ħω, illustrating the nonempty nature of the vacuum.
In quantum field theory, zero-point energy arises from the zero-point motion of all field modes. The cumulative
Phenomena such as the Casimir effect and the Lamb shift are linked to vacuum fluctuations and serve
In cosmology, vacuum energy is associated with the cosmological constant and dark energy, affecting the expansion
Proposals to extract usable energy from zero-point fluctuations are controversial and, to date, lack experimental substantiation;