Előadó: Prof. Shidong Liang (School of Physics, Sun Yat-sen University, Guangzhou, China)
Előadásának címe: Noncanonical Features of Noncommutative Quantum Mechanics
Dátum: 2026. szeptember 21. hétfő, 14:00–15:00
Helyszín: Wigner FK II. ép. Médiaterem
Összefoglaló:
We explore the interplay among noncommutativity, noncanonicality, and observability in quantum mechanics based on an extended Heisenberg algebra. Using the Bopp shift technique, we develop a unified framework in which noncommutative and noncanonical effects are systematically incorporated into quantum operators. The resulting framework leads to modified Schrödinger, Klein–Gordon, Dirac, and Pauli equations and provides a systematic description of their observable consequences. We introduce an energy-dependent parameterization scheme to explore possible connections between noncommutative quantum effects and several fundamental problems, including dark energy and quantum decoherence. We also show that the extended algebra can generate anomalous velocity and acceleration for free particles, offering a possible quantum-mechanical perspective on the accelerated expansion of the Universe. Furthermore, noncommutativity gives rise to novel quantum fluctuations and generalized uncertainty relations beyond the standard Heisenberg form. Our results indicate that noncommutativity and noncanonicality may have genuine observable consequences, suggesting new connections between extended quantum mechanics and cosmology.
