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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.

Quantum Interpretations and Foundations

Is quantum wave function a real object or a mathematical tool?

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Graduate This is for the QFT-specialists

Jul 26, 2004 · Replies 4 · Jul 27, 2004

Replies: 4

Views: 2K

Graduate Effective Potential: Krammer, Coulomb, Approximation Questions

Jul 26, 2004 · Replies 2 · Jul 27, 2004

Replies: 2

Views: 3K

Graduate Potential barriers, wavepackets, probabilities etc.

Jul 21, 2004 · Replies 10 · Jul 26, 2004

Replies: 10

Views: 4K

Undergrad Left/right handed electrons - what's the difference?

Jul 24, 2004 · Replies 3 · Jul 26, 2004

Replies: 3

Views: 17K

Graduate Trapping a Single Photon: Is it Possible?

Jul 26, 2004 · Replies 2 · Jul 26, 2004

Replies: 2

Views: 3K

Graduate Quantum Phase Compactification via Spacetime Expansion

Jul 23, 2004 · Replies 5 · Jul 25, 2004

Replies: 5

Views: 3K

Graduate Relativity: Is Faster Light Travel Possible?

Jul 25, 2004 · Replies 4 · Jul 25, 2004

Replies: 4

Views: 2K

Graduate A question in solving schrodinger's equation

Jul 23, 2004 · Replies 11 · Jul 25, 2004

Replies: 11

Views: 3K

Graduate How Does Electron Size Impact Covariance in Quantum Field Theory?

Jul 24, 2004 · Replies 6 · Jul 25, 2004

Replies: 6

Views: 2K

Graduate Can the Uncertainty Principle be Applied to Nuclear Physics?

Jul 25, 2004 · Replies 2 · Jul 25, 2004

Replies: 2

Views: 3K

Undergrad Fields & Energy: Path of Least Resistance?

Jul 24, 2004 · Replies 4 · Jul 25, 2004

Replies: 4

Views: 2K

Graduate Exclusion Principle: I'm Confused!

Jul 7, 2004 · Replies 29 · Jul 23, 2004

Replies: 29

Views: 6K

Solve the Mystery: Who Said "A Computer Cannot Make a Perfect Model of Itself"?

Jul 16, 2004 · Replies 2 · Jul 23, 2004

Replies: 2

Views: 2K

Graduate Interpritations of Quantum Mechanics

Jun 5, 2004 · Replies 40 · Jul 23, 2004

2

Replies: 40

Views: 8K

Graduate Singularity prevented by repulsive force?

Jul 20, 2004 · Replies 6 · Jul 21, 2004

Replies: 6

Views: 3K

Undergrad Beginner-intermediate books on quantum physics

Jul 14, 2004 · Replies 2 · Jul 21, 2004

Replies: 2

Views: 4K

High School Suggestions on any good Niels Bohr sites

Jul 20, 2004 · Replies 2 · Jul 21, 2004

Replies: 2

Views: 3K

Graduate Designing An Electron Beam Gun for Two-Slits Experiment

Jul 20, 2004 · Replies 4 · Jul 21, 2004

Replies: 4

Views: 2K

Graduate Pullin: most accurate clock possible

Jul 17, 2004 · Replies 18 · Jul 20, 2004

Replies: 18

Views: 4K

Graduate Pauli Matrices and orthogonal projections

Jul 19, 2004 · Replies 5 · Jul 20, 2004

Replies: 5

Views: 6K

Graduate Can we truly understand the interaction between gravity and light?

Jul 18, 2004 · Replies 5 · Jul 20, 2004

Replies: 5

Views: 4K

Graduate Limited study of QM and all I know of operators

Jul 17, 2004 · Replies 5 · Jul 20, 2004

Replies: 5

Views: 2K

Graduate How Does Nonlocality Impact Macroscopic Systems Like Human Consciousness?

Jul 12, 2004 · Replies 2 · Jul 19, 2004

Replies: 2

Views: 2K

Graduate The Quantum Measurement Problem and Decoherence

Jul 15, 2004 · Replies 5 · Jul 19, 2004

Replies: 5

Views: 4K

Graduate Uncertainty in QM: Nature or Measurement?

Jun 2, 2004 · Replies 22 · Jul 19, 2004

Replies: 22

Views: 5K

Graduate Are There Alternatives to the Higgs Mechanism for Explaining Spontaneous Symmetry Breaking?

Jul 10, 2004 · Replies 2 · Jul 18, 2004

Replies: 2

Views: 3K

Graduate Solving Kevin's QM Mystery: Sketchy Eigenfunctions

Jul 7, 2004 · Replies 16 · Jul 18, 2004

Replies: 16

Views: 4K

Graduate Do Incompatible Observables Have Common Eigenfunctions?

Jul 10, 2004 · Replies 2 · Jul 17, 2004

Replies: 2

Views: 5K

Graduate What Major Should You Choose for a Career in Quantum Computing Research?

Jul 8, 2004 · Replies 2 · Jul 17, 2004

Replies: 2

Views: 2K

Graduate Why can't QM just be built on a model of statespace over a background timespacespace

Jul 8, 2004 · Replies 9 · Jul 16, 2004

Replies: 9

Views: 2K

Graduate What is the significance of the Dirac Sea in modern quantum theory?

Jul 16, 2004 · Replies 2 · Jul 16, 2004

Replies: 2

Views: 3K

Graduate Is There Energy in the Structure of Space-Time?

Jul 15, 2004 · Replies 2 · Jul 16, 2004

Replies: 2

Views: 4K

Graduate What is the significance of U Symmetry in physics?

Jul 12, 2004 · Replies 2 · Jul 15, 2004

Replies: 2

Views: 7K

Graduate Unraveling the Mystery of Interference in the Double Slit Experiment

Jul 10, 2004 · Replies 13 · Jul 15, 2004

Replies: 13

Views: 3K

Graduate Is the direction of a photon's momentum uncertain when emitted from an atom?

Jul 12, 2004 · Replies 2 · Jul 13, 2004

Replies: 2

Views: 4K

Graduate The mathematics of measurement?

Jul 12, 2004 · Replies 6 · Jul 13, 2004

Replies: 6

Views: 2K

Graduate How Does Basis Choice Affect the Hermiticity of Operators in Polynomial Spaces?

Jul 7, 2004 · Replies 12 · Jul 12, 2004

Replies: 12

Views: 6K

Graduate What is the significance of various angles in NMR?

Jul 2, 2004 · Replies 7 · Jul 10, 2004

Replies: 7

Views: 4K

Graduate And while I'm at it: eigenfunction of position

Jul 7, 2004 · Replies 9 · Jul 10, 2004

Replies: 9

Views: 5K

Graduate How does Quantum Physics support the idea of a Resurrected Body?

Jul 2, 2004 · Replies 3 · Jul 10, 2004

Replies: 3

Views: 3K

Graduate Can Identical Quantum Particles Have Different Energies?

Jul 2, 2004 · Replies 2 · Jul 10, 2004

Replies: 2

Views: 2K

Undergrad Understanding Wave Nature of light

Jul 9, 2004 · Replies 4 · Jul 9, 2004

Replies: 4

Views: 5K

Graduate Quantum gravity force violations

Jul 8, 2004 · Replies 4 · Jul 9, 2004

Replies: 4

Views: 2K

Graduate Symmetry Breaking: How Does It Occur?

Jul 5, 2004 · Replies 11 · Jul 8, 2004

Replies: 11

Views: 4K

Graduate Can Symmetry Breaking on a Banquet Table Explain Bose States in Lasers?

Jul 7, 2004 · Replies 2 · Jul 7, 2004

Replies: 2

Views: 2K

Graduate Lightspeed Travel: Is It Possible?

Jun 28, 2004 · Replies 2 · Jul 6, 2004

Replies: 2

Views: 3K

Graduate Quantum Fields as having infinite degrees of freedom?

Jul 5, 2004 · Replies 3 · Jul 5, 2004

Replies: 3

Views: 7K

Undergrad Are operators always commutative with respect to operation +?

Jul 5, 2004 · Replies 6 · Jul 5, 2004

Replies: 6

Views: 2K

Graduate Fermionic Condensate: Experiments & Comparisons

Jun 30, 2004 · Replies 3 · Jul 5, 2004

Replies: 3

Views: 4K

Graduate Searching for Gauge Symmetries and Their Application in Physics

Jul 2, 2004 · Replies 4 · Jul 4, 2004

Replies: 4

Views: 2K

Graduate Spherically Symmetric Potentials

Jul 2, 2004 · Replies 10 · Jul 4, 2004

Replies: 10

Views: 5K

Graduate What Determines the Speed of Light in QED?

Jun 18, 2004 · Replies 25 · Jul 3, 2004

Replies: 25

Views: 16K

Graduate Wave Equation for the Helium Atom/No of terms = 2 or 3?

Jun 8, 2004 · Replies 6 · Jul 3, 2004

Replies: 6

Views: 4K

Undergrad I lack interest in Chemistry Help

Jul 3, 2004 · Replies 4 · Jul 3, 2004

Replies: 4

Views: 3K

Graduate The Electroweak Force: Unifying the EM & Weak Forces

Jun 20, 2004 · Replies 26 · Jul 2, 2004

Replies: 26

Views: 10K

Graduate Understanding the Dimensionality of Probability in Quantum Mechanics

Jun 20, 2004 · Replies 44 · Jul 1, 2004

2

Replies: 44

Views: 7K

Graduate What is the physical interpretation of orthogonal eigenfunctions?

Jun 22, 2004 · Replies 5 · Jun 30, 2004

Replies: 5

Views: 11K

Graduate QM Text Recommendation: R. Shankar's "QM" Text

Jun 22, 2004 · Replies 2 · Jun 30, 2004

Replies: 2

Views: 3K

Graduate Hamiltonian is commutable with momentum operator

Jun 19, 2004 · Replies 5 · Jun 28, 2004

Replies: 5

Views: 5K

Graduate Graviton Energy: Min. Amount & Universe Total

Jun 21, 2004 · Replies 4 · Jun 27, 2004

Replies: 4

Views: 3K

Graduate How Do Photons Relate to Quantum Mechanics and the Uncertainty Principle?

Jun 15, 2004 · Replies 16 · Jun 26, 2004

Replies: 16

Views: 4K

Quantum Computing: Opinions, News & More

Jun 22, 2004 · Replies 9 · Jun 26, 2004

Replies: 9

Views: 3K

Graduate Path integral of Richard Feynman

Jun 24, 2004 · Replies 3 · Jun 25, 2004

Replies: 3

Views: 5K

Graduate Understanding the Hamilton Operator and its Matrix Representation

Jun 16, 2004 · Replies 24 · Jun 24, 2004

Replies: 24

Views: 6K

Graduate Quantum Level Question: Absorption Freqs of Electrons

Jun 22, 2004 · Replies 6 · Jun 24, 2004

Replies: 6

Views: 3K

Graduate Explaining EPR after Bell's inequalities

May 24, 2004 · Replies 8 · Jun 24, 2004

Replies: 8

Views: 4K

Graduate Is Griffiths' Statement About the Addition of Angular Momentum Always Correct?

Jun 15, 2004 · Replies 5 · Jun 24, 2004

Replies: 5

Views: 6K

Graduate Probability Waves: Real or Not?

Jun 19, 2004 · Replies 14 · Jun 24, 2004

Replies: 14

Views: 3K

Graduate Time dependent transformations

Jun 21, 2004 · Replies 4 · Jun 23, 2004

Replies: 4

Views: 3K

Graduate Trivial contradiction to the 3rd postulate

Jun 22, 2004 · Replies 7 · Jun 23, 2004

Replies: 7

Views: 2K

High School Is photosynthesis a form of cold fusion?

Jun 5, 2004 · Replies 8 · Jun 22, 2004

Replies: 8

Views: 4K

Graduate Is a Wave in Quantum Mechanics Ever in Freefall?

Sep 21, 2003 · Replies 4 · Jun 22, 2004

Replies: 4

Views: 3K

High School What Medical Radioisotopes Do Cyclo and Synchrotrons Produce?

Jun 14, 2004 · Replies 2 · Jun 22, 2004

Replies: 2

Views: 2K

Graduate Understanding Perturbation Theory and Symmetry in Quantum Mechanics

Jun 19, 2004 · Replies 3 · Jun 21, 2004

Replies: 3

Views: 3K

Graduate Unraveling Loop Gravity in Quantum Physics

Jun 21, 2004 · Replies 2 · Jun 21, 2004

Replies: 2

Views: 2K

Graduate Hidden Variables in Quantum Mechanics

Jun 14, 2004 · Replies 19 · Jun 19, 2004

Replies: 19

Views: 6K

Graduate Can Entangled Particles Enable Instantaneous Communication?

Jun 18, 2004 · Replies 13 · Jun 19, 2004

Replies: 13

Views: 3K

Graduate Quantum Determinacy: Is Subatomic Event Cause Unknown or Uncertain?

Jun 14, 2004 · Replies 5 · Jun 18, 2004

Replies: 5

Views: 3K

Graduate Gravitational displacement measurement

Jun 17, 2004 · Replies 2 · Jun 17, 2004

Replies: 2

Views: 2K

Graduate Quantum Theory & Elasticity: Mechanics Research

Jun 16, 2004 · Replies 2 · Jun 17, 2004

Replies: 2

Views: 3K

Graduate How Does Matter-Energy Duality Explain Electron Behavior?

Jun 17, 2004 · Replies 1 · Jun 17, 2004

Replies: 1

Views: 3K

Graduate Bell's experiment and causality

Jun 17, 2004 · Replies 11 · Jun 17, 2004

Replies: 11

Views: 3K

Artificial rain cloud machine created by Israel scientists

Jan 15, 2004 · Replies 8 · Jun 17, 2004

Replies: 8

Views: 15K

Graduate Where can I find the equations for the strong nuclear force?

Jun 7, 2004 · Replies 16 · Jun 17, 2004

Replies: 16

Views: 22K

Graduate Book Research RE Spin Wave technology: Pseudoscience or just incomplete?

Jun 16, 2004 · Replies 3 · Jun 16, 2004

Replies: 3

Views: 4K

Graduate 8000 word dissertation on a physics topic

Jun 15, 2004 · Replies 4 · Jun 16, 2004

Replies: 4

Views: 3K

Graduate Does every possible path = every possible observer?

Jun 15, 2004 · Replies 3 · Jun 15, 2004

Replies: 3

Views: 2K

Graduate Everyone Has a Perfect Universe?

Jun 13, 2004 · Replies 7 · Jun 15, 2004

Replies: 7

Views: 3K

Pronouncing Spinors: A Self-Adjoint QM & GR Example

Jun 14, 2004 · Replies 2 · Jun 14, 2004

Replies: 2

Views: 2K

Graduate Local operations and classical communication

Jun 5, 2004 · Replies 2 · Jun 14, 2004

Replies: 2

Views: 2K

Graduate How will a stream of photon (being light) looks like?

May 14, 2004 · Replies 8 · Jun 13, 2004

Replies: 8

Views: 3K

Graduate One-dimensional Schrodinger Equation

Jun 12, 2004 · Replies 8 · Jun 13, 2004

Replies: 8

Views: 5K

Graduate Superstrings and the Laws of Physics

Jun 5, 2004 · Replies 3 · Jun 12, 2004

Replies: 3

Views: 3K

Graduate What is the Procrustean method for entanglement distillation?

Jun 11, 2004 · Replies 3 · Jun 12, 2004

Replies: 3

Views: 5K

Graduate What Are the Mysteries Behind Quantum Mechanics and Parallel Universes?

Jun 5, 2004 · Replies 2 · Jun 12, 2004

Replies: 2

Views: 4K

Graduate Is There a Disconnect Between Intuition and Mathematics in Quantum Theory?

Jun 10, 2004 · Replies 2 · Jun 11, 2004

Replies: 2

Views: 2K

Undergrad The exchange particle for gravity: the graviton?

Jun 11, 2004 · Replies 4 · Jun 11, 2004

Replies: 4

Views: 5K

Graduate The Halo and the Non Linear Crystal

Jun 3, 2004 · Replies 2 · Jun 9, 2004

Replies: 2

Views: 3K

Graduate What is the significance of the commutator in quantum mechanics?

Jun 7, 2004 · Replies 9 · Jun 9, 2004

Replies: 9

Views: 6K

Graduate Raising Operator (Harmonic Oscillator)

Jun 9, 2004 · Replies 2 · Jun 9, 2004

Replies: 2

Views: 4K

Quantum Physics

Quantum physics, or quantum mechanics, is a branch of physics that explores the behavior of matter and energy at the smallest scales, where classical physics principles break down. It introduces the concept of quantization, suggesting that certain properties, such as energy levels, are quantized and can only exist in discrete values.

Quantum mechanics encompasses wave-particle duality, where particles like electrons exhibit both wave and particle characteristics. The theory is probabilistic, relying on probability amplitudes to predict outcomes, and features phenomena like superposition, where particles can exist in multiple states simultaneously.

Quantum physics has transformed our understanding of the microscopic world, leading to technologies like transistors and lasers, and continues to provoke profound questions about the nature of reality and the role of observation in shaping it.

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