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PHYSICS 115C · PHYS 115CQuantum Mechanics

Physics · 4 units · Undergraduate upper division (100-199)

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Time-independent perturbation theory, application to atomic spectra. Time-dependent perturbation theory. Fermi’s golden rule. Scattering. Wentzel-Kramers-Brillouin (WKB) approximation.

P/NP or letter grading.

When it runs

Checking the Schedule of Classes…

Requisites

Official UCLA wording

Requisite: course 115B.

BruinTree reads · Prerequisite

confidence 1.00 · from text
PHYSICS 115B

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About PHYSICS 115C. We read UCLA’s requisite wording by machine, and it gets things wrong.

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Requires

Everything that has to come before this course, not just the courses named in the requisite above.

PHYSICS 115C

  • PHYSICS 115BQuantum Mechanics
    • PHYSICS 105BAnalytic Mechanics
      • PHYSICS 105AAnalytic Mechanics1 more beneath
    • PHYSICS 115AQuantum Mechanics
      • PHYSICS 17Modern Physics6 more beneath
      • PHYSICS 32Mathematical Methods10 more beneath
      • PHYSICS 105AAnalytic Mechanicsanother path to it

1 direct requisite. Showing 7 courses over 3 levels; the branches marked with a count carry on past it. Every course here opens its own tree.

Unlocks

What this course is a requisite for, and what those courses lead to in turn.

PHYSICS 115C

  • PHYSICS 123Atomic Structure
  • PHYSICS 124Nuclear Physics
  • PHYSICS 126Elementary Particle Physics
    • PHYSICS 128Cosmology and Particle Astrophysics
  • PHYSICS 180QQuantum Optics Laboratory
  • PHYSICS 245Quantum Computation
    • QNT SCI 402Quantum Information
      • QNT SCI 403Theory of Quantum Devicesanother path to it
    • QNT SCI 403Theory of Quantum Devices
    • QNT SCI 420Satellite Quantum Networking

5 courses list this as a requisite. The whole downstream is here — 10 courses over 3 levels. Every course here opens its own tree.

  • Winter 2026
  • Spring 2026
  • Winter 2027
  • Spring 2027

Scheduled, not typical — from UCLA’s Schedule of Classes, which publishes Fall 2025 through Spring 2027 and nothing before it.