Dephasing

{
  "id": "MLC-T-CHM-003021",
  "term": "Dephasing",
  "field": "Chemistry",
  "definition": "The loss of coherence among an ensemble of oscillating dipoles or spins, leading to a decay in the macroscopic signal observed in spectroscopic experiments. This phenomenon arises from interactions with the environment or from intrinsic inhomogeneities within the sample. It contributes to the broadening of spectral lines, such as in nuclear magnetic resonance (NMR) spectroscopy.",
  "synonyms": [
    "phase relaxation"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "Gaussian band",
    "homogeneous line-broadening",
    "inhomogeneous broadening",
    "spectral band"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 654 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/dephasing/"
}