https://haifei.pro/en/tags/electromagnetic-waves/Recent content in Electromagnetic Waves on Haifei's HomeHugoenhfwang132@gmail.com (hfwang132)hfwang132@gmail.com (hfwang132)This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.Tue, 29 Jul 2025 14:22:00 +0800https://haifei.pro/en/post_20250729_%E7%94%B5%E7%A3%81%E6%B3%A2%E6%98%AF%E5%85%89%E5%AD%90%E7%9A%84%E6%A6%82%E7%8E%87%E6%B3%A2%E5%90%97/Tue, 29 Jul 2025 14:22:00 +0800hfwang132@gmail.com (hfwang132)https://haifei.pro/en/post_20250729_%E7%94%B5%E7%A3%81%E6%B3%A2%E6%98%AF%E5%85%89%E5%AD%90%E7%9A%84%E6%A6%82%E7%8E%87%E6%B3%A2%E5%90%97/<h2 id="probability-waves-vs-quantum-fields">Probability Waves vs. Quantum Fields</h2> <p>The electromagnetic field is not the probability wave of photons, just as the Dirac field is not the probability wave of electrons.</p> <p>A probability wave refers to the single-particle wavefunction (in the position representation) in nonrelativistic quantum mechanics.</p> <p><strong>Clearly, probability waves</strong> apply only to single-particle states in the nonrelativistic regime. The <strong>electromagnetic field</strong> and the <strong>Dirac field</strong>, on the other hand, are <strong>quantum fields</strong> and must be discussed within the framework of quantum field theory.</p>