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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

I Question about discussions around quantum interpretations

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Can we quantize Aristotelian Physics?

Apr 5, 2012 · Replies 1 · Apr 12, 2012

Replies: 1

Views: 1K

Understanding Particle Self-Interference in the Double Slit Experiment

Apr 12, 2012 · Replies 2 · Apr 12, 2012

Replies: 2

Views: 2K

Alice/Bob Instant communication protocol. Does this work?

Apr 7, 2012 · Replies 19 · Apr 12, 2012

Replies: 19

Views: 4K

Electronic Transitions in Protium vs. Deuterium

Apr 10, 2012 · Replies 1 · Apr 12, 2012

Replies: 1

Views: 2K

Question about Gunter Nimtz's experiments

Apr 11, 2012 · Replies 3 · Apr 12, 2012

Replies: 3

Views: 2K

Why isn't Pauli Exclusion Principle a force?

Apr 11, 2012 · Replies 4 · Apr 12, 2012

Replies: 4

Views: 3K

Is Quantumness of Product States a Violation of Classical Realism?

Apr 10, 2012 · Replies 9 · Apr 12, 2012

Replies: 9

Views: 2K

What Are the Two Helicities of Electrons and Their Implications?

Apr 9, 2012 · Replies 3 · Apr 11, 2012

Replies: 3

Views: 11K

Is Casamir Effect Related to Anti-Matter?

Apr 10, 2012 · Replies 3 · Apr 11, 2012

Replies: 3

Views: 2K

Virtual photon-antiphoton pairs?

Apr 3, 2012 · Replies 16 · Apr 11, 2012

Replies: 16

Views: 5K

How Do Particles Mediate Forces (Strong Nuclear, Weak Nuclear)

Apr 10, 2012 · Replies 3 · Apr 10, 2012

Replies: 3

Views: 1K

Quantum Fourier Transform of Periodic States

Oct 17, 2011 · Replies 3 · Apr 10, 2012

Replies: 3

Views: 3K

What are quantum fluctuations ?

Apr 3, 2012 · Replies 7 · Apr 10, 2012

Replies: 7

Views: 4K

Uncovering the Mystery of Waves of Probability in Quantum Mechanics

Mar 31, 2012 · Replies 12 · Apr 10, 2012

Replies: 12

Views: 2K

Could very low energy virtual particles last a very long time?

Apr 10, 2012 · Replies 1 · Apr 10, 2012

Replies: 1

Views: 1K

Over-simplified Bell test experiment

Jan 22, 2011 · Replies 17 · Apr 10, 2012

Replies: 17

Views: 6K

Desctructive inteference of coherent light beams

Apr 6, 2012 · Replies 19 · Apr 9, 2012

Replies: 19

Views: 3K

What is the meaning of the ∂ symbol in wave function equations?

Apr 9, 2012 · Replies 1 · Apr 9, 2012

Replies: 1

Views: 2K

What is the scale or density when the double slit experiment stops working?

Mar 8, 2012 · Replies 15 · Apr 9, 2012

Replies: 15

Views: 4K

How Does Introducing a Second Magnetic Field Affect NMR and Quantum Behavior?

Mar 29, 2012 · Replies 2 · Apr 9, 2012

Replies: 2

Views: 2K

Clasical and quantum harmonic oscillator - correspondence principle

Apr 9, 2012 · Replies 2 · Apr 9, 2012

Replies: 2

Views: 2K

Can an airplane go through a quantum tunnel

Apr 8, 2012 · Replies 5 · Apr 9, 2012

Replies: 5

Views: 3K

Bound state transitions in QFT

Apr 8, 2012 · Replies 1 · Apr 8, 2012

Replies: 1

Views: 3K

Quantum mechanics and determinism

Apr 8, 2012 · Replies 2 · Apr 8, 2012

Replies: 2

Views: 2K

Threshold frequency of metals

Apr 7, 2012 · Replies 4 · Apr 8, 2012

Replies: 4

Views: 19K

What is the purpose of the renormalization group?

Apr 7, 2012 · Replies 3 · Apr 8, 2012

Replies: 3

Views: 4K

The radial schrodinger equation

Mar 28, 2012 · Replies 8 · Apr 8, 2012

Replies: 8

Views: 5K

So light has dual nature but I was wondering

Apr 8, 2012 · Replies 2 · Apr 8, 2012

Replies: 2

Views: 2K

Magnetic Field Orbital Splitting

Apr 7, 2012 · Replies 1 · Apr 8, 2012

Replies: 1

Views: 1K

Semiclassical exact expression ?

Apr 7, 2012 · Replies 1 · Apr 7, 2012

Replies: 1

Views: 2K

How Does Phase Affect Quantum State Transformations and Interference Patterns?

Apr 6, 2012 · Replies 5 · Apr 7, 2012

Replies: 5

Views: 2K

Compton Effect: Understand Maths & Photon Production

Mar 31, 2012 · Replies 3 · Apr 7, 2012

Replies: 3

Views: 2K

Anyons: distinguishable or indistinguishable?

Apr 6, 2012 · Replies 13 · Apr 7, 2012

Replies: 13

Views: 4K

Measuring which path in Hardy's paradox, results

Apr 5, 2012 · Replies 1 · Apr 7, 2012

Replies: 1

Views: 2K

Can waves of different types produce interference?

Apr 5, 2012 · Replies 1 · Apr 7, 2012

Replies: 1

Views: 2K

Matter waves of various particles - do they interact?

Apr 7, 2012 · Replies 1 · Apr 7, 2012

Replies: 1

Views: 2K

Do un-entangled photons exist?

Apr 6, 2012 · Replies 3 · Apr 7, 2012

Replies: 3

Views: 2K

Wigner's theorem, Bargmann's proof

Mar 8, 2012 · Replies 12 · Apr 6, 2012

Replies: 12

Views: 5K

Wick's theorem for other statistics

Apr 6, 2012 · Replies 1 · Apr 6, 2012

Replies: 1

Views: 2K

Why wave theory is wrong - A quick question

Apr 5, 2012 · Replies 10 · Apr 6, 2012

Replies: 10

Views: 3K

Addition of spin angular momenta

Apr 3, 2012 · Replies 3 · Apr 6, 2012

Replies: 3

Views: 2K

Why is superdeterminism not the universally accepted explanation of nonlocality?

Feb 21, 2012 · Replies 395 · Apr 6, 2012

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Replies: 395

Views: 56K

Invitation: Quantum Man: Richard Feynman's life in science online lecture

Mar 1, 2012 · Replies 11 · Apr 6, 2012

Replies: 11

Views: 4K

Novie questions about the double-slit experiment

Nov 27, 2011 · Replies 70 · Apr 5, 2012

3

Replies: 70

Views: 11K

Are Anyons Possible in Two Dimensions?

Apr 5, 2012 · Replies 3 · Apr 5, 2012

Replies: 3

Views: 2K

Rotation energy in a ball symmertical molecule, why only two axis?

Apr 3, 2012 · Replies 4 · Apr 5, 2012

Replies: 4

Views: 2K

Is electron spin uniquely determined?

Apr 4, 2012 · Replies 5 · Apr 5, 2012

Replies: 5

Views: 2K

Four Fundamental Forces - What Is the Fourth?

Apr 4, 2012 · Replies 4 · Apr 5, 2012

Replies: 4

Views: 2K

Destructive interference in the wavefunction, is this conceptually explainable?

Mar 27, 2012 · Replies 23 · Apr 4, 2012

Replies: 23

Views: 5K

Gravitational force of antimatter

Apr 1, 2012 · Replies 35 · Apr 4, 2012

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Replies: 35

Views: 5K

Why i in Schrodinger Equation

Apr 3, 2012 · Replies 16 · Apr 4, 2012

Replies: 16

Views: 7K

Is Space Expansion Driven by Self-Expansion or Dark Energy?

Apr 2, 2012 · Replies 11 · Apr 3, 2012

Replies: 11

Views: 3K

Why Use Spherical Coordinates for Hydrogen Atom's Hamiltonian in 3D?

Apr 3, 2012 · Replies 7 · Apr 3, 2012

Replies: 7

Views: 7K

Why imaginary co-ordinates and complex numbers?

Mar 22, 2012 · Replies 5 · Apr 3, 2012

Replies: 5

Views: 2K

Scanning tunnelling microscope - Whats the piezoscanner for?

Mar 25, 2012 · Replies 1 · Apr 3, 2012

Replies: 1

Views: 2K

Explanation of 6j Symbols (Tetrahedron)

Mar 30, 2012 · Replies 3 · Apr 3, 2012

Replies: 3

Views: 2K

What Causes Refraction to Occur?

Apr 1, 2012 · Replies 3 · Apr 3, 2012

Replies: 3

Views: 4K

Metal Contact Effect on 1-D particle in a box quantum well

Apr 3, 2012 · Replies 2 · Apr 3, 2012

Replies: 2

Views: 2K

Time Travel - Between two Kerr metric black holes w/detached event horizons

Apr 2, 2012 · Replies 1 · Apr 2, 2012

Replies: 1

Views: 1K

What are the four bell states and how do they relate to entanglement swapping?

Mar 27, 2012 · Replies 6 · Apr 2, 2012

Replies: 6

Views: 4K

Is It Possible to Find a Romney Voter in an Excited State?

Apr 1, 2012 · Replies 9 · Apr 2, 2012

Replies: 9

Views: 5K

Do wave-functions pass through transparent obstacles?

Apr 2, 2012 · Replies 3 · Apr 2, 2012

Replies: 3

Views: 2K

Why Are Photons Reflected at the Same Angle They Are Absorbed?

Apr 2, 2012 · Replies 5 · Apr 2, 2012

Replies: 5

Views: 2K

Quantum Jumps: Do they really exist?

Mar 19, 2012 · Replies 57 · Apr 2, 2012

2

Replies: 57

Views: 11K

Why is the wave function not measurable alone?

Apr 1, 2012 · Replies 2 · Apr 2, 2012

Replies: 2

Views: 2K

Where can I find recommended books to learn about Quantum Physics?

Apr 1, 2012 · Replies 6 · Apr 1, 2012

Replies: 6

Views: 3K

Why Does Electron Angular Momentum Not Align with External Field?

Mar 29, 2012 · Replies 9 · Apr 1, 2012

Replies: 9

Views: 4K

Help, my brain hurts. Does anything exist?

Mar 28, 2012 · Replies 28 · Apr 1, 2012

Replies: 28

Views: 6K

Relation between commutation and quantization

Mar 31, 2012 · Replies 3 · Apr 1, 2012

Replies: 3

Views: 3K

What Is the Conjugate of the Wave Function ψ(x)=R(x)e^(ikx)?

Apr 1, 2012 · Replies 1 · Apr 1, 2012

Replies: 1

Views: 3K

What is the true meaning of observing in quantum mechanics?

Mar 30, 2012 · Replies 3 · Apr 1, 2012

Replies: 3

Views: 3K

How can you prepare a state with a single photon?

Mar 31, 2012 · Replies 3 · Mar 31, 2012

Replies: 3

Views: 2K

Heisenberg Picture: Popularity & Photon Double-Slit Treatment

Mar 26, 2012 · Replies 9 · Mar 31, 2012

Replies: 9

Views: 5K

Emilio Santos joins the dark side

Mar 27, 2012 · Replies 40 · Mar 31, 2012

2

Replies: 40

Views: 7K

Do we really need a cutoff in QFT

Mar 27, 2012 · Replies 6 · Mar 30, 2012

Replies: 6

Views: 3K

What causes the tilt angle of a precessing proton to change in a magnetic field?

Mar 28, 2012 · Replies 1 · Mar 30, 2012

Replies: 1

Views: 3K

A method to detect fermionic magnetic monopoles?

Mar 29, 2012 · Replies 1 · Mar 30, 2012

Replies: 1

Views: 2K

Decoherence and the Density Matrix

Mar 29, 2012 · Replies 1 · Mar 30, 2012

Replies: 1

Views: 2K

How Does Gravitational Lensing Work in the Delayed Choice Experiment?

Mar 30, 2012 · Replies 2 · Mar 30, 2012

Replies: 2

Views: 2K

Understanding Renormalization in QFT: A General Approach to Mass and Fields

Mar 26, 2012 · Replies 11 · Mar 30, 2012

Replies: 11

Views: 3K

A few questions on quantum physics

Mar 29, 2012 · Replies 2 · Mar 30, 2012

Replies: 2

Views: 2K

How to find the geometry of singlet/triplet states?

Mar 29, 2012 · Replies 1 · Mar 29, 2012

Replies: 1

Views: 2K

How does the Pauli exlusion principle work?

Mar 29, 2012 · Replies 4 · Mar 29, 2012

Replies: 4

Views: 2K

Does schrodinger equation give complete description of electron?

Mar 27, 2012 · Replies 14 · Mar 29, 2012

Replies: 14

Views: 5K

The role of lambda in Bell (1964) and experiments

Mar 29, 2012 · Replies 1 · Mar 29, 2012

Replies: 1

Views: 2K

Excitons. Is this the same as radiative recombination?

Mar 29, 2012 · Replies 1 · Mar 29, 2012

Replies: 1

Views: 2K

Q regarding Quantum decoherence, r.e. double slit experiment

Mar 28, 2012 · Replies 1 · Mar 29, 2012

Replies: 1

Views: 2K

Quantum entanglement communication

Mar 28, 2012 · Replies 5 · Mar 29, 2012

Replies: 5

Views: 4K

What Is the Collapse of the Wave Function in Quantum Mechanics?

Mar 29, 2012 · Replies 1 · Mar 29, 2012

Replies: 1

Views: 2K

Questions abot magnetic monopoles

Mar 25, 2012 · Replies 5 · Mar 29, 2012

Replies: 5

Views: 2K

Wave functions, i don't get em

Feb 20, 2012 · Replies 9 · Mar 29, 2012

Replies: 9

Views: 3K

Schrodinger's Wave Equation: Understanding Observability

Mar 19, 2012 · Replies 28 · Mar 29, 2012

Replies: 28

Views: 5K

Uncertainty Principle & Particles Giving Off Light

Feb 29, 2012 · Replies 9 · Mar 29, 2012

Replies: 9

Views: 3K

Couple of questions on quantum physics from non-physicist

Mar 23, 2012 · Replies 18 · Mar 28, 2012

Replies: 18

Views: 4K

Assumptions for derivation of Plancks' law

Mar 28, 2012 · Replies 3 · Mar 28, 2012

Replies: 3

Views: 3K

Difficulty with relativistic units, eV/c^2

Mar 27, 2012 · Replies 2 · Mar 27, 2012

Replies: 2

Views: 3K

Wave Function: Physical Basis of 1st Order Derivative

Mar 25, 2012 · Replies 7 · Mar 27, 2012

Replies: 7

Views: 2K

How matter converted into energy?

Mar 26, 2012 · Replies 7 · Mar 27, 2012

Replies: 7

Views: 2K

Heisenbergs thought experiment

Mar 26, 2012 · Replies 3 · Mar 27, 2012

Replies: 3

Views: 2K

Two simultaneous measures of complementary properties

Mar 26, 2012 · Replies 10 · Mar 27, 2012

Replies: 10

Views: 3K

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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