Quantum Physics Forum

Join in expert discussion on quantum physics. Quantum physics is the mathematical description of the motion and interaction of subatomic particles. Quantum Mechanics and Field Theory.

Threads

Graduate How Can a Linear Potential Be Created Experimentally for Electron Studies?

  • PhilSh
  • · Replies 3 ·
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Graduate Detection of magnetic monopoles

  • tavi_boada
  • · Replies 11 ·
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11

Graduate Is the Zero Point Consistent Across the Universe?

  • SimonA
  • · Replies 12 ·
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12

Graduate Help Solve Physics Problem: Where is My Mistake?

  • vancalar
  • · Replies 3 ·
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3

Graduate Wigner-Eckart Thm: Calc Double Bar for Electric Dipole Op

  • jdstokes
  • · Replies 5 ·
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Graduate Difference between interaction and interference of QM systems

  • jdstokes
  • · Replies 1 ·
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1

Graduate Calculating Dislocation Chain Length in Solids

  • mate1000
  • · Replies 1 ·
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1

Graduate Confusion about the contour green's function

  • wdlang
  • · Replies 2 ·
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2

Understanding Unity: A Layman's Guide

  • sikander mali
  • · Replies 7 ·
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7

Graduate Clarification on Introductory QM

  • jms5631
  • · Replies 11 ·
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11

Graduate Static Charge Photons: Frequency & Wavelength

  • ObsessiveMathsFreak
  • · Replies 4 ·
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4

High School Kinda new to this stuff, is there anything that makes electrons more

  • Qaiphyx
  • · Replies 6 ·
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Graduate Is the Pauli Exclusion Principle Universally Applicable?

  • madness
  • · Replies 22 ·
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22

Undergrad What are the angles of photoelectron emissions from a metal surface?

  • i_island0
  • · Replies 2 ·
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2

Graduate What is the Information Loss Paradox and How Does Hawking Radiation Relate?

  • spidey
  • · Replies 31 ·
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Graduate Partial Mossbauer effect—Why not?

  • jimgraber
  • · Replies 1 ·
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Graduate Experimental verification of QFT?

  • pellman
  • · Replies 7 ·
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7

Graduate Discover the Truth About Weak Measurements in 2007 | Postbiota Discussion Thread

  • Gelsamel Epsilon
  • · Replies 1 ·
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Graduate Simple Quantum Information Question

  • Pbrunett
  • · Replies 4 ·
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4

Graduate Hawking Radiation: Observational Proof, Quantum Fluctuations & More

  • spidey
  • · Replies 3 ·
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3

Graduate Adam C: Funktionalanalytische u. Geometrische Anomalie Aspekte - Hilfe gesucht

  • cosmology
  • · Replies 1 ·
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1

Graduate Stimulated emission. Energy of the photon inducing the emission.

  • deccard
  • · Replies 3 ·
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3

Graduate Rabi oscillations and spin 1/2 systems.

  • noospace
  • · Replies 3 ·
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3

Graduate Deriving Jeans' Result from Magnetic Vector Potential

  • noospace
  • · Replies 1 ·
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1

Graduate Computational project in quantum physics

  • IHateMayonnaise
  • · Replies 6 ·
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6

Graduate Do photons collide with each other like any other massive object?

  • Ahmed Abdullah
  • · Replies 6 ·
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6

Graduate Schroedinger Equation (The original article)

  • guguma
  • · Replies 4 ·
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4

Graduate Understanding Phase Diffusion in Bose Einstein Condensates

  • wdlang
  • · Replies 3 ·
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3

Graduate Infinite Well: Ladder Operators for Simplified Expression

  • jostpuur
  • · Replies 7 ·
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7

Graduate Eigenstates: What would happen if you had a laser aimed at a mirror 45 degrees.

  • hxtasy
  • · Replies 4 ·
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4

Graduate Second Quantization and Field Operators

  • mkrems
  • · Replies 34 ·
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34

Graduate Exploring the Paradoxical Einstein-Podolsky-Rosen Experiment

  • guguma
  • · Replies 97 ·
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Graduate A solution to time dependent SE but not Time independent SE?

  • faen
  • · Replies 5 ·
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5

Undergrad Quantum Computing: Are D-Wave's Adiabatic Quantum Computers Effective?

  • delta_simon
  • · Replies 3 ·
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3

Graduate Is photon emission spherical or linear?

  • joey_m
  • · Replies 3 ·
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3

Graduate Really a virtual particle sea?

  • jostpuur
  • · Replies 19 ·
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Graduate QM Intro: Questions on Copenhagen, Feynmann and Many Worlds

  • jms5631
  • · Replies 8 ·
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Graduate Understanding the Gamow Energy Equation

  • grscott_2000
  • · Replies 2 ·
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2

Undergrad Proving Linear Theory: Key Points Needed

  • xylai
  • · Replies 2 ·
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Graduate Spicy Questions on Particle Physics

  • Tachyonie
  • · Replies 10 ·
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Graduate Conceptual question about wavefunctions/momentum

  • noospace
  • · Replies 4 ·
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4

Graduate Momentum to Energy Representation in 3D Box

  • mkrems
  • · Replies 1 ·
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Graduate Why are there two different values for the electron magnetic moment?

  • drodophila
  • · Replies 9 ·
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9

Graduate What exactly is a particle - in particular in constrast to a wave

  • birulami
  • · Replies 3 ·
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Graduate When does Hawking radiation start?

  • regev
  • · Replies 9 ·
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9

Graduate Zeros of the partition function

  • mhill
  • · Replies 1 ·
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Graduate Polarization, then detection: collapse when?

  • birulami
  • · Replies 8 ·
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8

Graduate Does every observable commute with the hamiltonian?

  • CPL.Luke
  • · Replies 12 ·
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12

Graduate How can you test if a bipartite system is entangled?

  • ouacc
  • · Replies 2 ·
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Graduate Question about the notation in Quantum Physics

  • princeton118
  • · Replies 2 ·
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Graduate Classical analouge of electron spin ?

  • mkbh_10
  • · Replies 7 ·
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7

Graduate Unitary Operators and the Time Evolution Operator: Exploring the Connection

  • captain
  • · Replies 5 ·
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5

Graduate Wave/particle duality: what exactly is a particle?

  • birulami
  • · Replies 26 ·
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Graduate The Observer Effect: Testing Double-Slit Experiment?

  • Dr.Todd
  • · Replies 35 ·
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Graduate Path integrals and supposed sum over paths

  • pellman
  • · Replies 9 ·
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9

Graduate Introduction to Quantum Field Theory in curved spacetime

  • explain
  • · Replies 7 ·
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7

Graduate How is the act of observation defined in quantum mechanics?

  • Yoni
  • · Replies 4 ·
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4

Graduate Dirac Delta Function Potential (One Dimension)

  • Mathemaniac
  • · Replies 4 ·
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4

Graduate Do photons bounce off of each other?

  • Usaf Moji
  • · Replies 4 ·
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4

Graduate A linear theory (quantum theory)?

  • xylai
  • · Replies 3 ·
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3

Graduate Can Double Slit Quantum Eraser Enable Faster-than-Light Communication?

  • Lord Crc
  • · Replies 11 ·
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11

High School Is Richard Feynman's Lecture on Quantum Physics Still Relevant Today?

  • PenKnight
  • · Replies 1 ·
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1

Graduate How can I accurately portray quantum physics in a short film?

  • hiddenlight
  • · Replies 7 ·
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7

Graduate Who Studies Partial Wave Unitarity in Quantum Mechanics?

  • ophase
  • · Replies 1 ·
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1

Graduate Does the Pauli Exclusion Principle Apply to All Quantum Particles?

  • _Mayday_
  • · Replies 2 ·
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2

Graduate Photon's age? consider two interacting photons in the EPR effect

  • GearsofWar
  • · Replies 16 ·
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Graduate Photon Momentum Transfer & Energy Conservation

  • americanforest
  • · Replies 7 ·
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7

Graduate Oberver Collapsing Wave funcions vs. Wheeler-Feynman Absorber

  • BeatleHiker
  • · Replies 3 ·
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3

Graduate Learn about Operator Transformation for Improved Understanding of Complex Papers

  • moonlai
  • · Replies 3 ·
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3

Graduate Can High Energy Levels Allow Neutrons to Overlap in Black Holes?

  • woody3254
  • · Replies 1 ·
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1

Graduate Two questions concerning scattering in QED

  • QuantumDevil
  • · Replies 2 ·
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2

Graduate Why Is the Fine Structure Constant Still a Mystery?

  • spidey
  • · Replies 11 ·
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11

Graduate What Determines the Precession Angle of an Electron in a Magnetic Field?

  • drodophila
  • · Replies 1 ·
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1

Graduate Time Operator in Standard Quantum Mechanics?

  • CPL.Luke
  • · Replies 9 ·
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9

Undergrad Understanding the Uncertainty Principle

  • sgoodrow
  • · Replies 62 ·
3
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62

Graduate Infinite quantum wave function

  • lark
  • · Replies 8 ·
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8

Graduate Does Quantum Entanglement Reveal Flaws in Quantum Mechanics?

  • michael879
  • · Replies 25 ·
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25

Graduate Virtual particle energy-momentum

  • jostpuur
  • · Replies 1 ·
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1

Graduate Quantum mechanics and the macroscopic universe .

  • Nick666
  • · Replies 43 ·
2
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43

Graduate Superselection Rule: Definition & Meaning

  • touqra
  • · Replies 15 ·
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15

Graduate Transformations of free fields

  • bartadam
  • · Replies 3 ·
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3

Graduate Rotation Invariant of Sch. Equation and [Lx,H]=0] ?

  • torehan
  • · Replies 1 ·
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1

Graduate How Do Quantum Operators Affect Position and Momentum Expectations?

  • noospace
  • · Replies 2 ·
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2

Graduate Connection between Quantum and Classical worlds

  • Josh Coswell
  • · Replies 1 ·
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1

Graduate How Is CP-Violation Explored in Particle Physics?

  • Pythagorean
  • · Replies 2 ·
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2

Graduate Relation between a measurement and the operators

  • ouacc
  • · Replies 1 ·
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1

Graduate Local measurements on an entangled pair. (My understanding)

  • ouacc
  • · Replies 1 ·
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1

Graduate Feynman propagator as distribution

  • schieghoven
  • · Replies 11 ·
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11

Graduate Non-Physicist looking for an answer

  • GordonBennett
  • · Replies 16 ·
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16

Graduate A question about the uncertainty principle.

  • kenewbie
  • · Replies 21 ·
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21

Graduate Two body problem of Hidrogen Atom

  • torehan
  • · Replies 1 ·
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1

Graduate Angular Momentum, Spin and SO(3), SU(2), and Lorentz Group

  • Gigi
  • · Replies 2 ·
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2

Graduate How Small Can Computers Get Before They Become Phantom Devices?

  • leftyguitarjo
  • · Replies 2 ·
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2

Graduate Physicists Successfully Store and Retrieve Nothing

  • SF
  • · Replies 3 ·
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3

Graduate True vacuums with no energy at all inside

  • Meatbot
  • · Replies 3 ·
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3

Graduate Are the Quantum Numbers real ?

  • Valery
  • · Replies 8 ·
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8

Graduate A common sense objection to tunneling?

  • kenewbie
  • · Replies 10 ·
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10

Graduate The Meaning of Schrodingers Equation - In English

  • dachikid
  • · Replies 10 ·
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10

Graduate Understanding Classical Physics: The Role of Planck Constant

  • scarecrow
  • · Replies 2 ·
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2

Graduate Quantum computations, irreversibility, unitarity

  • kdv
  • · Replies 2 ·
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2