Peter Heszler (November 1, 1958, Miskolc – August 15, 2009, Szeged) was a Hungarian physicist.

[2] One of his early famous papers was the exact denial of a non-existing phenomenon called quantum 1/f noise.

In the quantum 1/f noise model, the photons and their vacuum states were omitted from the equations and such errors yielded faulty mathematical predictions for fluctuations that cannot exist because they are forbidden by the basic orthogonality rules of quantum electrodynamics.

Perhaps, his most important breakthroughs are the discovery and application of emission of thermal radiation from nanoparticles during laser-assisted synthesis.

[4] The time dependent spectral analysis of this radiation offers a powerful tool to study the chemical reactions and their dynamics during laser-assisted nanoparticle fabrication.