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PHYSICS 115B · PHYS 115BQuantum Mechanics

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

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Three-dimensional problems. Central potentials. Hydrogen atom. Angular momentum and spin, identical particles, and Pauli exclusion principle. Electrons in electromagnetic field. Symmetries.

P/NP or letter grading.

When it runs

Checking the Schedule of Classes…

Requisites

Official UCLA wording

Requisite: course 115A. Corequisite: course 105B.

BruinTree reads · Corequisite

confidence 1.00 · from text
PHYSICS 105B

BruinTree reads · Prerequisite

confidence 1.00 · from text
PHYSICS 115A

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About PHYSICS 115B. 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 115B

  • PHYSICS 105BAnalytic Mechanics
    • PHYSICS 105AAnalytic Mechanics
      • PHYSICS 32Mathematical Methodsanother path to it
      • MATH 33BDifferential Equations1 more beneath
  • PHYSICS 115AQuantum Mechanics
    • PHYSICS 17Modern Physics
      • PHYSICS 1APhysics for Scientists and Engineers: Mechanics2 more beneath
      • PHYSICS 1AHPhysics for Scientists and Engineers: Mechanics (Honors)2 more beneath
      • PHYSICS 1BPhysics for Scientists and Engineers: Oscillations, Waves, Electric and Magnetic Fields1 more beneath
      • PHYSICS 1BHPhysics for Scientists and Engineers: Oscillations, Waves, Electric and Magnetic Fields (Honors)1 more beneath
      • PHYSICS 1CPhysics for Scientists and Engineers: Electrodynamics, Optics, and Special Relativity
      • PHYSICS 1CHPhysics for Scientists and Engineers: Electrodynamics, Optics, and Special Relativity (Honors)
      • PHYSICS 32Mathematical Methodsanother path to it
    • PHYSICS 32Mathematical Methods
      • PHYSICS 1APhysics for Scientists and Engineers: Mechanicsanother path to it
      • PHYSICS 1AHPhysics for Scientists and Engineers: Mechanics (Honors)another path to it
      • MATH 32ACalculus of Several Variables1 more beneath
      • PHYSICS 1BPhysics for Scientists and Engineers: Oscillations, Waves, Electric and Magnetic Fieldsanother path to it
      • MATH 32BCalculus of Several Variables1 more beneath
      • MATH 33ALinear Algebra and Applications2 more beneath
    • PHYSICS 105AAnalytic Mechanicsanother path to it

2 direct requisites. Showing 21 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 115B

  • PHYSICS 112Thermal Physics
    • PHYSICS 140AIntroduction to Solid-State Physics
      • PHYSICS 241ASolid-State Physics4 more beyond
    • PHYSICS 140BQuantum States of Matter
      • PHYSICS 241ASolid-State Physicsanother path to it
    • EPS SCI 200AIntroduction to Geophysics and Space Physics I: Solid Earth and Planets
      • EPS SCI 228Introduction to Planetary Dynamos
    • PHYSICS 144Polymer Physics
    • PHYSICS 170NComputational Physics and Astronomy Laboratory
    • EPS SCI 200BIntroduction to Geophysics and Space Physics II: Oceans and Atmospheres
      • EPS SCI 228Introduction to Planetary Dynamosanother path to it
    • EPS SCI 200CIntroduction to Geophysics and Space Physics III: Plasmas —Aeronomy and Interplanetary Medium
      • EPS SCI 228Introduction to Planetary Dynamosanother path to it
      • EPS SCI 240Space Plasma Physics
    • EPS SCI 211Mathematical Methods of Geophysics
  • PHYSICS 115CQuantum Mechanics
    • PHYSICS 123Atomic Structure
    • PHYSICS 124Nuclear Physics
    • PHYSICS 126Elementary Particle Physics
      • PHYSICS 128Cosmology and Particle Astrophysicsanother path to it
    • PHYSICS 180QQuantum Optics Laboratory
    • PHYSICS 245Quantum Computationanother path to it
  • ASTR 145High-Energy Astrophysics
  • PHYSICS 128Cosmology and Particle Astrophysics
  • PHYSICS 150Physics of Charged-Particle and Laser Beams
  • CHEM C115BAdvanced Quantum Chemistry with Laboratory II
    • CHEM C115CAdvanced Quantum Chemistry: Applications
  • PHYSICS 180FElementary Particle Laboratory
  • PHYSICS 235Quantum Simulation for Physics
  • CHEM C215BAdvanced Quantum Chemistry with Laboratory II
    • PHYSICS M215DNonequilibrium Statistical Mechanics and Molecular Biophysics
    • CHEM C215CAdvanced Quantum Chemistry: Applications
    • CHEM M223CNonequilibrium Statistical Mechanics and Molecular Biophysics
  • 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

10 courses list this as a requisite. Showing 38 courses over 3 levels; the branches marked with a count carry on past it. Every course here opens its own tree.

  • Fall 2025
  • Winter 2026
  • Fall 2026
  • Winter 2027

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