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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

Graduate Understanding Barandes' microscopic theory of causality

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Graduate Radiation energy of a moving particle

Jan 4, 2004 · Replies 64 · Feb 13, 2004

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Replies: 64

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Graduate Bose-Einstein Condensates. What is a matter wave ?

Feb 12, 2004 · Replies 2 · Feb 12, 2004

Replies: 2

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Undergrad EM Spectrum's Official EM Ranges

Feb 11, 2004 · Replies 9 · Feb 12, 2004

Replies: 9

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High School How does a particle interfere with itself?

Feb 10, 2004 · Replies 9 · Feb 12, 2004

Replies: 9

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Graduate Understanding Probability Density for a Bose-Einstein Condensate

Feb 7, 2004 · Replies 2 · Feb 12, 2004

Replies: 2

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Graduate What is the connection between quantum mechanics and geometry?

Jan 10, 2004 · Replies 10 · Feb 11, 2004

Replies: 10

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Graduate Can I Couple Angular Momenta Into One Big One?

Feb 10, 2004 · Replies 3 · Feb 11, 2004

Replies: 3

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Graduate Question about RG and scaling in qft

Feb 4, 2004 · Replies 1 · Feb 10, 2004

Replies: 1

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Graduate Relativistic Quantum Mechanics

Jan 27, 2004 · Replies 3 · Feb 10, 2004

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Undergrad Wavefunction - square integrable

Feb 8, 2004 · Replies 2 · Feb 8, 2004

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Graduate The Schrodinger Equation solved piece by piece

Feb 6, 2004 · Replies 2 · Feb 8, 2004

Replies: 2

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Graduate Symmetric, antisymmetric and parity

Jan 30, 2004 · Replies 1 · Feb 6, 2004

Replies: 1

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Undergrad Could There Be an Object Without Mass?

Feb 4, 2004 · Replies 2 · Feb 4, 2004

Replies: 2

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Graduate Nature of electrons, the 'wavicle'.

Feb 3, 2004 · Replies 4 · Feb 4, 2004

Replies: 4

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Graduate How Do Clock Postulate Calculations Impact Time Measurement in Physics?

Jan 27, 2004 · Replies 2 · Feb 4, 2004

Replies: 2

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Undergrad How Maxwell's theory of radiation could not explain atomic spectra?

Jan 4, 2004 · Replies 19 · Feb 4, 2004

Replies: 19

Views: 9K

Graduate Symmetric, antisymmetric and parity

Jan 30, 2004 · Replies 2 · Feb 2, 2004

Replies: 2

Views: 3K

Graduate Limits of Speed & Physical Quantities in the Universe

Jan 21, 2004 · Replies 8 · Jan 30, 2004

Replies: 8

Views: 3K

Graduate What Are the Dynamical Variables in Quantum Mechanics of Time?

Jan 28, 2004 · Replies 14 · Jan 28, 2004

Replies: 14

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Graduate Intrigued by the concept of teleportation

Jan 12, 2004 · Replies 16 · Jan 27, 2004

Replies: 16

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Graduate Good functional analysis book by Erwin Kreyzig

Jan 27, 2004 · Replies 2 · Jan 27, 2004

Replies: 2

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Graduate What Are the Latest Technologies Being Explored for Future Space Travel?

Dec 26, 2003 · Replies 7 · Jan 27, 2004

Replies: 7

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Undergrad Type II superconductors definition?

Dec 30, 2003 · Replies 2 · Jan 27, 2004

Replies: 2

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Graduate A question regarding state spaces

Jan 15, 2004 · Replies 8 · Jan 27, 2004

Replies: 8

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Graduate Learn Quantum Mechanics with Free Hilbert Space Courses

Jan 23, 2004 · Replies 2 · Jan 26, 2004

Replies: 2

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Graduate Solve Ehrenfest's Theorem: Find Position Expectation Value

Jan 21, 2004 · Replies 4 · Jan 25, 2004

Replies: 4

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Graduate Wigner-Eckert Theorem: Definition & Understanding

Jan 17, 2004 · Replies 7 · Jan 23, 2004

Replies: 7

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Undergrad Exploring QED: A DIY Diffraction Grating Experiment for a Physics Presentation

Dec 23, 2003 · Replies 13 · Jan 22, 2004

Replies: 13

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Undergrad Is BCS Theory Widely Accepted in Physics?

Dec 29, 2003 · Replies 15 · Jan 20, 2004

Replies: 15

Views: 6K

Graduate Understanding Quantum Jump and Photodisintegration in Light and Atomic Nuclei

Jan 5, 2004 · Replies 6 · Jan 19, 2004

Replies: 6

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Graduate Quantum Tech: Examples & Details

Jan 13, 2004 · Replies 13 · Jan 17, 2004

Replies: 13

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High School What Does Quantum Leap Really Mean in Technology?

Jan 15, 2004 · Replies 3 · Jan 16, 2004

Replies: 3

Views: 3K

Graduate What is the significance of the Gleason theorem in Quantum Logic?

Jan 9, 2004 · Replies 3 · Jan 15, 2004

Replies: 3

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Graduate Ontological status of fields in QFT

Jan 4, 2004 · Replies 18 · Jan 13, 2004

Replies: 18

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High School What Is Particle Spin in Physics?

Jan 11, 2004 · Replies 2 · Jan 13, 2004

Replies: 2

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Undergrad Can Zero-Point Energy Be Harnessed for Infinite Power?

Oct 13, 2003 · Replies 10 · Jan 13, 2004

Replies: 10

Views: 8K

Graduate Understanding the Concept of Hybrid Bonds: A Basic Explanation

Jan 13, 2004 · Replies 1 · Jan 13, 2004

Replies: 1

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Type I Civilizations: Have We Been Visited?

Dec 29, 2003 · Replies 2 · Jan 12, 2004

Replies: 2

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Undergrad Schrodinger's Wife pregnant or not?

Jan 6, 2004 · Replies 8 · Jan 12, 2004

Replies: 8

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Graduate Absolute measurement: is it really possible?

Jan 10, 2004 · Replies 1 · Jan 11, 2004

Replies: 1

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Graduate Can Quantum Entanglement Allow Instant Communication Across the Galaxy?

Jan 5, 2004 · Replies 6 · Jan 9, 2004

Replies: 6

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Graduate Screen with slits, on rollers, a la Feynman

Jan 5, 2004 · Replies 6 · Jan 9, 2004

Replies: 6

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Graduate Consciousness and quantum theory

Nov 13, 2003 · Replies 150 · Jan 8, 2004

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Replies: 150

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Graduate Is an electron everywhere at once?

Dec 25, 2003 · Replies 21 · Jan 7, 2004

Replies: 21

Views: 11K

Graduate Is There a Limit to Time and Beyond in Quantum Physics?

Dec 30, 2003 · Replies 3 · Jan 6, 2004

Replies: 3

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Graduate Electromagnetism and the photon

Dec 30, 2003 · Replies 2 · Jan 6, 2004

Replies: 2

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Graduate Can anything really be at rest?

Dec 16, 2003 · Replies 16 · Jan 6, 2004

Replies: 16

Views: 8K

Graduate Can Quantum Field Theory Be Applied to Gravity as It Was to Electromagnetism?

Jan 4, 2004 · Replies 23 · Jan 6, 2004

Replies: 23

Views: 4K

Graduate Understanding the Quantum Measurement Problem in the Copenhagen Interpretation

Jan 4, 2004 · Replies 2 · Jan 4, 2004

Replies: 2

Views: 3K

What Would You Ask Einstein if He Were Here Now?

Nov 28, 2003 · Replies 14 · Jan 3, 2004

Replies: 14

Views: 6K

Graduate Quantum Mechanics: A Brief Overview and Explanation

Dec 24, 2003 · Replies 11 · Jan 2, 2004

Replies: 11

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Graduate How does the time evolution of the w_i look like for irreversible processes?

Dec 31, 2003 · Replies 2 · Jan 2, 2004

Replies: 2

Views: 4K

Graduate What is the basis for Pauli's exclusion principle?

Dec 16, 2003 · Replies 16 · Jan 1, 2004

Replies: 16

Views: 12K

Graduate Quantum Inflation: Becoming Unstable Through Quantum Mechanics

Dec 24, 2003 · Replies 2 · Dec 31, 2003

Replies: 2

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Graduate Can being out of phase with time increase the impact of objects?

Dec 23, 2003 · Replies 5 · Dec 30, 2003

Replies: 5

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Graduate Wave-particle duality and the role of observation in determining locality

Dec 16, 2003 · Replies 10 · Dec 26, 2003

Replies: 10

Views: 7K

A particle in different places at the same time

Nov 26, 2003 · Replies 16 · Dec 26, 2003

Replies: 16

Views: 10K

Poll

Graduate Why does Proton not escape during Beta Emission?

Dec 18, 2003 · Replies 2 · Dec 25, 2003

Replies: 2

Views: 3K

Graduate Can Information Travel Back in Time through Quantum Physics?

Dec 22, 2003 · Replies 5 · Dec 24, 2003

Replies: 5

Views: 5K

Graduate Pair Production: 2 Photos or Electron/Positron?

Dec 21, 2003 · Replies 3 · Dec 22, 2003

Replies: 3

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Graduate Electrons you come in contact with

Dec 21, 2003 · Replies 6 · Dec 22, 2003

Replies: 6

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Undergrad Current theory in development within the field of Quantum Physics

Dec 13, 2003 · Replies 2 · Dec 22, 2003

Replies: 2

Views: 3K

Graduate Still Particles: Impact on Our World

Dec 21, 2003 · Replies 4 · Dec 22, 2003

Replies: 4

Views: 2K

High School Light: Reflection, Re-emission, or both?

Dec 19, 2003 · Replies 3 · Dec 20, 2003

Replies: 3

Views: 15K

Can you unscramble a scrambled egg?

Dec 14, 2003 · Replies 4 · Dec 20, 2003

Replies: 4

Views: 4K

Graduate PROJECT D32 classified until now

Dec 16, 2003 · Replies 4 · Dec 18, 2003

Replies: 4

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Graduate Why Did Einstein Reject the Uncertainty Principle?

Dec 9, 2003 · Replies 14 · Dec 17, 2003

Replies: 14

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Graduate What to study for quantum mechanics?

Dec 3, 2003 · Replies 15 · Dec 17, 2003

Replies: 15

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Graduate Do Bosons Annihilate or Interact Differently?

Dec 8, 2003 · Replies 25 · Dec 15, 2003

Replies: 25

Views: 6K

Graduate Collapse of Wave-Functions: What Does it Mean & How to Visualize It?

Dec 12, 2003 · Replies 3 · Dec 13, 2003

Replies: 3

Views: 3K

Graduate What Determines the Direction of Twist in Helical Wavefronts?

Oct 16, 2003 · Replies 10 · Dec 13, 2003

Replies: 10

Views: 6K

Graduate Hawking Radiation: Examining Cosmological and QM Effects

Dec 10, 2003 · Replies 10 · Dec 11, 2003

Replies: 10

Views: 3K

Graduate Dopey Question about Bell's theorem.

Dec 4, 2003 · Replies 2 · Dec 11, 2003

Replies: 2

Views: 3K

Graduate Evidence that Atoms Have Bizzare Wisdom

Dec 9, 2003 · Replies 8 · Dec 11, 2003

Replies: 8

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Graduate Calculating the Collapse of a Bohr Atom: Larmor's Formula for Power Radiation

Dec 10, 2003 · Replies 3 · Dec 10, 2003

Replies: 3

Views: 6K

Graduate Understanding Spin 2 Particles: Examples and Intuition

Dec 9, 2003 · Replies 6 · Dec 10, 2003

Replies: 6

Views: 6K

Graduate 32 quantum states of an electron

Sep 17, 2003 · Replies 11 · Dec 8, 2003

Replies: 11

Views: 14K

High School Explaining Stationary Waves: Ideas & Analogy

Dec 7, 2003 · Replies 2 · Dec 8, 2003

Replies: 2

Views: 4K

High School Beginner: uncertainty principle?

Dec 4, 2003 · Replies 10 · Dec 5, 2003

Replies: 10

Views: 3K

Graduate High energy co-valent atom bonding

Nov 26, 2003 · Replies 2 · Dec 4, 2003

Replies: 2

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Graduate Help with Eigenfunction Questions

Dec 1, 2003 · Replies 4 · Dec 4, 2003

Replies: 4

Views: 4K

Reaching Type One Civilization: Predictions and Possibilities

Sep 7, 2003 · Replies 43 · Dec 3, 2003

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Replies: 43

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Undergrad Einstein's Nobel Prize for Photo-Electric Effect

Nov 30, 2003 · Replies 3 · Dec 1, 2003

Replies: 3

Views: 6K

Undergrad What Are Quantum Numbers and Why Are They Important?

Nov 19, 2003 · Replies 7 · Dec 1, 2003

Replies: 7

Views: 5K

Graduate Hermitean Operators: Real Eigenvalues & Orthonormal Basis in QM

Nov 18, 2003 · Replies 14 · Dec 1, 2003

Replies: 14

Views: 12K

Graduate Macro Entanglement: Caesium Gas 1012 Atoms

Nov 27, 2003 · Replies 12 · Nov 29, 2003

Replies: 12

Views: 4K

Graduate Outlook for High Energy Physics (Wilczek)

Nov 22, 2003 · Replies 2 · Nov 29, 2003

Replies: 2

Views: 5K

Graduate What Governs Quantum Fluctuations and the Universe's Creation?

Nov 27, 2003 · Replies 10 · Nov 29, 2003

Replies: 10

Views: 5K

High School Which is harder: classical or quantum physics?

Nov 28, 2003 · Replies 3 · Nov 29, 2003

Replies: 3

Views: 4K

Graduate Quantum Tunneling Probability Calculation

Nov 21, 2003 · Replies 4 · Nov 29, 2003

Replies: 4

Views: 6K

Graduate Topological Quantum Field Theory, definition

Nov 21, 2003 · Replies 2 · Nov 28, 2003

Replies: 2

Views: 4K

Graduate How Does Quantum Probability Affect Light Reflection on Water Surfaces?

Nov 20, 2003 · Replies 2 · Nov 28, 2003

Replies: 2

Views: 3K

Graduate Proving the Fourier Series for a Real, Odd Function

Nov 26, 2003 · Replies 3 · Nov 27, 2003

Replies: 3

Views: 3K

Graduate Mystery Meson X(3872): Scientists Uncover New Particle

Nov 21, 2003 · Replies 15 · Nov 25, 2003

Replies: 15

Views: 4K

Quantum Suicide: Will You Accept the Challenge?

Sep 28, 2003 · Replies 8 · Nov 24, 2003

Replies: 8

Views: 5K

Undergrad Quantum Mechanics: Explained for a Novice

Sep 15, 2003 · Replies 37 · Nov 24, 2003

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Replies: 37

Views: 10K

Graduate Gravitational Distortions & Double Slit Experiment - What If?

Nov 21, 2003 · Replies 3 · Nov 24, 2003

Replies: 3

Views: 3K

Graduate Prove Uncertainity Relation for Particle in a Box w/ Length L

Nov 21, 2003 · Replies 2 · Nov 23, 2003

Replies: 2

Views: 4K

Undergrad Electron Penetration in Acrylic: Energy & Equation

Nov 21, 2003 · Replies 2 · Nov 21, 2003

Replies: 2

Views: 8K

Graduate Geisterteilchen neutrino research on TV

Nov 17, 2003 · Replies 11 · Nov 21, 2003

Replies: 11

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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