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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

A Universal quantum physics

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How Can Renormalization Methods Remove Singularities in Divergent Series?

Nov 29, 2005 · Replies 1 · Nov 29, 2005

Replies: 1

Views: 2K

Why did Stern and Gerlach use a non-uniform magnetic field in their experiment?

Nov 29, 2005 · Replies 2 · Nov 29, 2005

Replies: 2

Views: 3K

Entanglement of common cosmological origin?

Nov 25, 2005 · Replies 10 · Nov 28, 2005

Replies: 10

Views: 3K

Dirac Contraction: Evaluating Propagators at Same Point

Nov 27, 2005 · Replies 6 · Nov 27, 2005

Replies: 6

Views: 3K

Bethe-Salpeter equation confused

Nov 27, 2005 · Replies 1 · Nov 27, 2005

Replies: 1

Views: 3K

Zero Point Enery Field Manipulator

Nov 24, 2005 · Replies 2 · Nov 25, 2005

Replies: 2

Views: 3K

Zero Point Energy: An Exploration of Its Meaning & Implications

Nov 24, 2005 · Replies 2 · Nov 25, 2005

Replies: 2

Views: 2K

Classical Atom Models: A Nobel Prize Waiting to be Won?

Nov 16, 2005 · Replies 78 · Nov 25, 2005

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Replies: 78

Views: 9K

Can I post my light theory on Physics Forums?

Nov 25, 2005 · Replies 2 · Nov 25, 2005

Replies: 2

Views: 2K

Quantum mechanics and classical physics

Nov 6, 2005 · Replies 13 · Nov 23, 2005

Replies: 13

Views: 7K

What is the relationship between quantum mechanics and quantum field theory?

Nov 23, 2005 · Replies 8 · Nov 23, 2005

Replies: 8

Views: 5K

Electric dipole selection rules

Nov 23, 2005 · Replies 1 · Nov 23, 2005

Replies: 1

Views: 10K

Confused ( well obviously it QM ) - TDSE problem in understand

Nov 22, 2005 · Replies 3 · Nov 22, 2005

Replies: 3

Views: 2K

Calculating Vacuum Polarization Effect on Hydrogen Atom

Nov 15, 2005 · Replies 5 · Nov 22, 2005

Replies: 5

Views: 3K

Poll

Non disturbing (?) measurement

Nov 22, 2005 · Replies 5 · Nov 22, 2005

Replies: 5

Views: 3K

How can electrodynamics prove the stability of electron

Oct 24, 2005 · Replies 29 · Nov 20, 2005

Replies: 29

Views: 4K

A new nonlinear Schrodinger equation

Nov 19, 2005 · Replies 2 · Nov 20, 2005

Replies: 2

Views: 3K

I have a question about Beta Decay

Nov 19, 2005 · Replies 2 · Nov 19, 2005

Replies: 2

Views: 5K

Exact calculation of tunneling current?

Nov 18, 2005 · Replies 8 · Nov 19, 2005

Replies: 8

Views: 10K

Schrödinger equation: P(r)>1 ?

Nov 19, 2005 · Replies 3 · Nov 19, 2005

Replies: 3

Views: 4K

Finding "Dynamical Symmetry Breaking in Quantum Field Theories

Nov 17, 2005 · Replies 5 · Nov 18, 2005

Replies: 5

Views: 3K

Creating 3 Photon Entanglement with PDC: Can it be Done?

Oct 23, 2005 · Replies 24 · Nov 18, 2005

Replies: 24

Views: 4K

What counts as a measurement in QM?

Nov 7, 2005 · Replies 34 · Nov 17, 2005

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Replies: 34

Views: 6K

What's the Flaw with Classical Mechanics and Quantum Mechanics?

Nov 10, 2005 · Replies 9 · Nov 17, 2005

Replies: 9

Views: 3K

Planck Temperature: Is It The Upper Limit?

Nov 14, 2005 · Replies 3 · Nov 17, 2005

Replies: 3

Views: 6K

Estimating Average Electric Field and Volume of Atomic Photons | DaTario

Nov 14, 2005 · Replies 12 · Nov 17, 2005

Replies: 12

Views: 3K

Can you measure an objects spin or position, or polarization

Nov 3, 2005 · Replies 13 · Nov 16, 2005

Replies: 13

Views: 3K

Entanglement with more than two particles

Nov 16, 2005 · Replies 3 · Nov 16, 2005

Replies: 3

Views: 4K

Hamiltonian with complex potential

Aug 18, 2005 · Replies 19 · Nov 15, 2005

Replies: 19

Views: 10K

Can Instantaneous Action at a Distance Exist Within Planck Time Limits?

Nov 9, 2005 · Replies 6 · Nov 15, 2005

Replies: 6

Views: 3K

Why Does Inserting a Mass Width Simulate Higher Order Diagram Effects?

Nov 10, 2005 · Replies 9 · Nov 15, 2005

Replies: 9

Views: 4K

Is QM Inherently Non-local in EPR and Bell Discussions?

Oct 23, 2005 · Replies 232 · Nov 13, 2005

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Replies: 232

Views: 25K

Imaginary Momentum: Physical Interpretation of Bound States

Nov 12, 2005 · Replies 7 · Nov 13, 2005

Replies: 7

Views: 8K

Electric field produced by electron

Nov 2, 2005 · Replies 21 · Nov 12, 2005

Replies: 21

Views: 6K

What role does the delta function play in quantum mechanics and field theory?

Nov 11, 2005 · Replies 3 · Nov 11, 2005

Replies: 3

Views: 2K

Learning Quantum Mechanics - A Guide for Physics A-Levelers with Math Background

Nov 9, 2005 · Replies 7 · Nov 11, 2005

Replies: 7

Views: 3K

David Asks: Does Beckenstein's Law Work Both Ways?

Oct 16, 2005 · Replies 1 · Nov 10, 2005

Replies: 1

Views: 3K

Feynman Rules for Phi to the 6th theory

Nov 8, 2005 · Replies 7 · Nov 9, 2005

Replies: 7

Views: 8K

Is there any validity to the disproof of quantum physics theory?

Nov 6, 2005 · Replies 7 · Nov 8, 2005

Replies: 7

Views: 3K

Fields in quantum field theory

Nov 3, 2005 · Replies 7 · Nov 8, 2005

Replies: 7

Views: 4K

Divergent series in perturbation theory of quantum field theory

Nov 6, 2005 · Replies 2 · Nov 8, 2005

Replies: 2

Views: 3K

Question about continuity postulates

Nov 5, 2005 · Replies 9 · Nov 8, 2005

Replies: 9

Views: 3K

How does time function in quantum mechanics and its multiverse implications?

Oct 22, 2005 · Replies 34 · Nov 7, 2005

2

Replies: 34

Views: 6K

Poll

Hydrino's and Blacklight Power

Nov 7, 2005 · Replies 3 · Nov 7, 2005

Replies: 3

Views: 5K

Is the Generation of Photons Related to Electromagnetic Loops?

Nov 5, 2005 · Replies 5 · Nov 6, 2005

Replies: 5

Views: 2K

Is the density matrix a better way of describing quantum states than spinors?

Sep 10, 2005 · Replies 16 · Nov 4, 2005

Replies: 16

Views: 9K

Does Quantum Measurement Depend on the Observer's Consciousness?

Oct 12, 2005 · Replies 8 · Nov 4, 2005

Replies: 8

Views: 3K

A Paradox: Do LHV Theories Need the HUP?

Oct 6, 2005 · Replies 107 · Nov 4, 2005

4

Replies: 107

Views: 14K

Observation Independence - what and why?

Nov 1, 2005 · Replies 8 · Nov 4, 2005

Replies: 8

Views: 3K

Really delayed choice quantum eraser

Nov 3, 2005 · Replies 2 · Nov 3, 2005

Replies: 2

Views: 6K

Why not a quantum of any topological genus?

Oct 4, 2005 · Replies 6 · Nov 3, 2005

Replies: 6

Views: 2K

How Do Equations Determine Angular Momentum Eigenvalues in Quantum Mechanics?

Oct 31, 2005 · Replies 6 · Nov 3, 2005

Replies: 6

Views: 3K

Does EPR represent Einstein's views very well?

Oct 25, 2005 · Replies 7 · Nov 3, 2005

Replies: 7

Views: 3K

Understanding the Notation of U(p,q) in Group Theory | Wybourne Book Study

Oct 31, 2005 · Replies 2 · Nov 3, 2005

Replies: 2

Views: 2K

Solutions for Griffiths and recommendation for book on problems in QM

Nov 1, 2005 · Replies 5 · Nov 2, 2005

Replies: 5

Views: 15K

What is the Physics of FTL-Particles and Ignorons?

Nov 2, 2005 · Replies 2 · Nov 2, 2005

Replies: 2

Views: 3K

Reflection at the Quantum Level

Nov 1, 2005 · Replies 3 · Nov 1, 2005

Replies: 3

Views: 9K

Position and Momentum: Understanding the Basics

Aug 24, 2005 · Replies 13 · Nov 1, 2005

Replies: 13

Views: 4K

Heisenberg's Uncertainty Principle?

Nov 1, 2005 · Replies 3 · Nov 1, 2005

Replies: 3

Views: 2K

Science behind magnetic monopoles in any depth?

Oct 27, 2005 · Replies 10 · Oct 31, 2005

Replies: 10

Views: 2K

Quantum Electrodynamics: A Basic Textbook for Self-Study in Undergrad Years

Oct 31, 2005 · Replies 2 · Oct 31, 2005

Replies: 2

Views: 3K

Understanding the Associative Axiom in Sakurai's First Chapter

Oct 27, 2005 · Replies 5 · Oct 31, 2005

Replies: 5

Views: 3K

Does Quantum tunneling prove speeds greater than light?

Oct 31, 2005 · Replies 3 · Oct 31, 2005

Replies: 3

Views: 5K

Hermitian conjugate of differential operator

Oct 30, 2005 · Replies 5 · Oct 30, 2005

Replies: 5

Views: 15K

What Is Heisenberg Hamiltonian?

Oct 20, 2005 · Replies 6 · Oct 29, 2005

Replies: 6

Views: 5K

Calculating Casimir-Force: Zero Point Oscillation vs Virtual Particles

Oct 24, 2005 · Replies 5 · Oct 27, 2005

Replies: 5

Views: 2K

Why electron circulating in an orbit must spiral inwards?

Oct 27, 2005 · Replies 2 · Oct 27, 2005

Replies: 2

Views: 3K

Sakurai's treatment of Feynman's Path Integral

Oct 19, 2005 · Replies 4 · Oct 26, 2005

Replies: 4

Views: 7K

Complex Scalar Field in Terms of Two Independent Real Fields

Oct 22, 2005 · Replies 4 · Oct 26, 2005

Replies: 4

Views: 6K

Virtual Photon Lifetime: Proton in Atom Nucleus

Oct 20, 2005 · Replies 5 · Oct 25, 2005

Replies: 5

Views: 4K

The speed of light and Heisenburg

Oct 20, 2005 · Replies 9 · Oct 25, 2005

Replies: 9

Views: 2K

Casimir-Effect: Beyond Virtual Particles & Photons?

Oct 21, 2005 · Replies 12 · Oct 25, 2005

Replies: 12

Views: 3K

Does Bell's Theorem apply to non-local HV theories?

Oct 18, 2005 · Replies 28 · Oct 24, 2005

Replies: 28

Views: 5K

EPR statements to agree/disagree with or to comment on:

Oct 24, 2005 · Replies 3 · Oct 24, 2005

Replies: 3

Views: 3K

Does Negative Time Really Exist in Physics?

Oct 21, 2005 · Replies 12 · Oct 22, 2005

Replies: 12

Views: 22K

Griffiths Afterword and Superluminal Shadows

Oct 20, 2005 · Replies 2 · Oct 22, 2005

Replies: 2

Views: 2K

If we all locked ourselves in rooms

Oct 21, 2005 · Replies 2 · Oct 21, 2005

Replies: 2

Views: 2K

Thought experiment / paradox question

Oct 20, 2005 · Replies 2 · Oct 21, 2005

Replies: 2

Views: 2K

Uncertain about uncertainty principle

Oct 20, 2005 · Replies 4 · Oct 20, 2005

Replies: 4

Views: 2K

Energy-time Uncertainty and mass est. of exchange particles

Sep 11, 2005 · Replies 9 · Oct 20, 2005

Replies: 9

Views: 4K

Measure the speed of electron wave

Oct 19, 2005 · Replies 2 · Oct 20, 2005

Replies: 2

Views: 5K

Guidance in solving Scalar Field with BC's

Oct 11, 2005 · Replies 4 · Oct 20, 2005

Replies: 4

Views: 2K

The Uncertainty Principle and Quantized Time

Oct 19, 2005 · Replies 5 · Oct 19, 2005

Replies: 5

Views: 3K

Van der Waals vs. Casimir Force: Explained

Oct 5, 2005 · Replies 2 · Oct 18, 2005

Replies: 2

Views: 2K

He Atom Cooper Pair Vacuum Superconductor

Oct 13, 2005 · Replies 5 · Oct 18, 2005

Replies: 5

Views: 2K

Recommended Books for Feynman's Path Integrals in QM | Bibliography Suggestions

Oct 10, 2005 · Replies 12 · Oct 18, 2005

Replies: 12

Views: 4K

My gratiude/thankfulness for PF

Oct 18, 2005 · Replies 3 · Oct 18, 2005

Replies: 3

Views: 2K

Maxwell equations from spin-1 transformations under boosts

Oct 10, 2005 · Replies 10 · Oct 17, 2005

Replies: 10

Views: 5K

Vacuum to Vacuum Amplitudes and Functional Integrals

Oct 13, 2005 · Replies 9 · Oct 17, 2005

Replies: 9

Views: 8K

Can Quantum Computers Revolutionize Computing with 32 States per Electron?

Oct 10, 2005 · Replies 5 · Oct 17, 2005

Replies: 5

Views: 3K

Ranking of Quantum Mechanics interpretations?

Sep 20, 2005 · Replies 22 · Oct 16, 2005

Replies: 22

Views: 5K

Continuous and discreet parts of an electromagnetic wave

Oct 11, 2005 · Replies 7 · Oct 15, 2005

Replies: 7

Views: 5K

Quantum measurement and prediction

Oct 12, 2005 · Replies 4 · Oct 15, 2005

Replies: 4

Views: 2K

Is Hilbert space an isomorphism with the field of n-dimensional complex numbers?

Oct 12, 2005 · Replies 15 · Oct 14, 2005

Replies: 15

Views: 4K

Quantum gauge general relativity

Oct 5, 2005 · Replies 8 · Oct 13, 2005

Replies: 8

Views: 3K

Exact Perturbation Theory: Solving H0 and Obtaining Precise Energies

Oct 11, 2005 · Replies 2 · Oct 12, 2005

Replies: 2

Views: 2K

Experimental/theoretical quantum optics?

Oct 11, 2005 · Replies 3 · Oct 12, 2005

Replies: 3

Views: 5K

Shooting photons 1 per second?

Oct 4, 2005 · Replies 9 · Oct 12, 2005

Replies: 9

Views: 4K

Good Beginner Book for Quantum Physics for High Schoolers

Sep 15, 2005 · Replies 9 · Oct 12, 2005

Replies: 9

Views: 4K

The Impact of Smaller Planck's Constant: Examining Quantum Phenomena

Oct 10, 2005 · Replies 4 · Oct 10, 2005

Replies: 4

Views: 2K

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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