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  1. Velocity operator, its expression and eigenvalues - Physics Forums

    Jan 10, 2023 · The discussion centers on the velocity operator in quantum mechanics, specifically its definition and eigenvalues. The velocity operator is expressed as v = p m, where p is the …

  2. Energy operator and the Hamiltonian operator: Are they same?

    Sep 1, 2017 · The energy operator and the Hamiltonian operator are distinct entities in quantum mechanics. The discussion clarifies that while both operators can act on wave functions, they …

  3. What is the purpose of trace in quantum mechanics?

    Feb 2, 2009 · The trace operation in quantum mechanics is primarily utilized in the context of density operators, which provide a more general framework than traditional state vector …

  4. What is Velocity in Quantum Mechanics? - Physics Forums

    Jul 16, 2010 · I want to know what does velocity really mean in quantum mechanics. Since the particle doesn’t have exact position, how can we talk about the velocity and momentum?

  5. Understanding the Dagger Notation in Quantum Mechanics

    Oct 14, 2016 · Quantum physicists, students of Quantum Mechanics, and anyone seeking to deepen their understanding of operator notation and inner product interpretations in vector …

  6. Which operator for reflection in quantum mechanics?

    Apr 20, 2019 · Understanding of quantum mechanics, specifically operators and their representations. Familiarity with the parity operator and its implications in quantum systems.

  7. QM Notation: What's the Difference Between A* & A-dagger?

    Sep 30, 2008 · The discussion clarifies the distinctions between the notations A* and A† (A-dagger) in quantum mechanics (QM). A* represents the complex conjugate, while A† denotes …

  8. Heisenberg uncertainty principle and the canonical momentum …

    Dec 10, 2024 · Understanding of quantum mechanics principles, particularly the Heisenberg uncertainty principle. Familiarity with operator algebra in quantum mechanics, specifically non …

  9. No r dependence in L operator? • Physics Forums

    Feb 20, 2017 · In classical mechanics, angular momentum, L = r x p, depends of r. For a given momentum p, the bigger r is, the bigger is the angular momentum. Event in spherical …

  10. Why is -ih/2pi d/dx associated with the momentum operator in X …

    Jan 25, 2010 · The momentum operator in quantum mechanics is defined as -ih/2π d/dx when working in the position (X) basis, primarily due to its association with space translational …