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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.

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Quantum Interpretations and Foundations

Entanglement swapping and Bohmian mechanics

1.3K threads6 minutes ago

Graduate Entanglement swapping and Bohmian mechanics

6 minutes ago

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Graduate Natural line width and energy uncertainty question

anonymous299792458
Jan 29, 2005 · Replies 5 · Jan 29, 2005

Replies: 5

Graduate Could you entangle a charmed meson?

jr.fermi
Jan 22, 2005 · Replies 2 · Jan 29, 2005

Replies: 2

Graduate Working in the Heisenberg picture and comparing with Schrödinger

RedX
Jan 29, 2005 · Replies 3 · Jan 29, 2005

Replies: 3

Graduate Is a quantum field literally a field undergoing quantum mechanics?

Gold Barz
Jan 22, 2005 · Replies 14 · Jan 29, 2005

Replies: 14

Graduate Very very very easy quantum exam question

chrismuktar
Jan 22, 2005 · Replies 2 · Jan 29, 2005

Replies: 2

Graduate How Do We Choose the Right Hilbert Space in Quantum Mechanics?

Kane O'Donnell
Jan 28, 2005 · Replies 4 · Jan 28, 2005

Replies: 4

Graduate Is Faster-than-light Communication Possible?

rjensen2
Jan 25, 2005 · Replies 22 · Jan 28, 2005

Replies: 22

Undergrad Is all mass is just rotational inerta?

The_Thinker
Jan 25, 2005 · Replies 19 · Jan 28, 2005

Replies: 19

Graduate Projection operators in a three-state quantum system

el_hijoeputa
Jan 27, 2005 · Replies 2 · Jan 28, 2005

Replies: 2

Graduate How does uncertainty princ. apply to photons?

JesseM
Jan 27, 2005 · Replies 11 · Jan 28, 2005

Replies: 11

Graduate How Do GUT and Quantum Theory Interact at the Extremes of Cosmology?

einstein_from_oz
Jan 27, 2005 · Replies 12 · Jan 28, 2005

Replies: 12

Graduate What is an Eigenequation and Eigenvalue in the Schrodinger Equation?

ohhhnooo
Jan 27, 2005 · Replies 2 · Jan 28, 2005

Replies: 2

Graduate Live Forever? Possibilities in Quantum Mechanics

trosten
Jan 27, 2005 · Replies 20 · Jan 27, 2005

Replies: 20

High School Is Light Dispersed Due to Interference?

demosthenes_001
Jan 27, 2005 · Replies 3 · Jan 27, 2005

Replies: 3

Undergrad Does a particle stop when bouncing off a wall at 90 degrees?

MattTuc13
Jan 26, 2005 · Replies 5 · Jan 27, 2005

Replies: 5

Graduate How does a particle know when to send out its messenger?

The_Thinker
Jan 25, 2005 · Replies 3 · Jan 27, 2005

Replies: 3

Graduate Solving for Momentum in Energy Equation

RedX
Jan 27, 2005 · Replies 6 · Jan 27, 2005

Replies: 6

Graduate What Is the Peierls Critical Mass Formula?

uraknai
Jan 20, 2005 · Replies 2 · Jan 27, 2005

Replies: 2

Graduate We can't know the velocity and position of a particle accurately ?

The_Thinker
Jan 26, 2005 · Replies 4 · Jan 27, 2005

Replies: 4

Graduate Black Body Radiation: Classical Mechanics Can't Explain It

ohhhnooo
Jan 26, 2005 · Replies 2 · Jan 27, 2005

Replies: 2

Undergrad What is rest mass and why do photons have zero rest mass?

imran
Jan 24, 2005 · Replies 2 · Jan 26, 2005

Replies: 2

Graduate Why do uncharged neutrons produce magnetic fields?

jet10
Jan 24, 2005 · Replies 26 · Jan 26, 2005

Replies: 26

Undergrad Is energy conserved for light?

The_Thinker
Jan 25, 2005 · Replies 4 · Jan 25, 2005

Replies: 4

Graduate Bell's Theorem and Negative Probabilities

DrChinese
Jan 9, 2005 · Replies 52 · Jan 25, 2005

2

Replies: 52

Graduate How is a self-adjoint linear operator defined in quantum mechanics?

trosten
Jan 25, 2005 · Replies 4 · Jan 25, 2005

Replies: 4

Graduate What make system different from environment?

scilover89
Jan 25, 2005 · Replies 2 · Jan 25, 2005

Replies: 2

Graduate Transition probabilities (basic concepts no math)

RedX
Jan 23, 2005 · Replies 2 · Jan 25, 2005

Replies: 2

Graduate What does Bell's theorem actually prove about connections between particles?

cangus
Jan 24, 2005 · Replies 3 · Jan 24, 2005

Replies: 3

Graduate Challenges in building a quantum computer and possible solutions

Louis Cypher
Jan 17, 2005 · Replies 2 · Jan 24, 2005

Replies: 2

Graduate What is the relationship between quantum spin and classical spin?

ppnl2
Jan 21, 2005 · Replies 19 · Jan 23, 2005

Replies: 19

Graduate What caused the first quantum fluctuation?

wolram
Jan 23, 2005 · Replies 6 · Jan 23, 2005

Replies: 6

Graduate Why is Psi Considered a Complex Phenomenon?

imran
Jan 17, 2005 · Replies 8 · Jan 22, 2005

Replies: 8

Graduate Does observation really mean interaction?

kaos
Jan 14, 2005 · Replies 24 · Jan 21, 2005

Replies: 24

Graduate Jaynes' quantum syllogism and the pre-Copernican syllogism

JohnBarchak
Jan 14, 2005 · Replies 2 · Jan 21, 2005

Replies: 2

Graduate Hund's Rules and L-S Coupling: Understanding Limitations and Confusions"

secret2
Jan 14, 2005 · Replies 2 · Jan 21, 2005

Replies: 2

Graduate Quantum singularity reactor: theoretically possible?

Tisthammerw
Jan 21, 2005 · Replies 4 · Jan 21, 2005

Replies: 4

Graduate Why are bilinear spinor expressions important in quantum field theory?

robousy
Jan 20, 2005 · Replies 8 · Jan 21, 2005

Replies: 8

Undergrad What do we call the dimension measured with time?

notsureanymore
Jan 18, 2005 · Replies 8 · Jan 20, 2005

Replies: 8

Graduate A particle with a mass of 6 MeV has energy in Joules of 6c^2?

DB
Jan 19, 2005 · Replies 18 · Jan 20, 2005

Replies: 18

Undergrad Electron Wavelength: Find Data Here

repugno
Jan 20, 2005 · Replies 3 · Jan 20, 2005

Replies: 3

Graduate Picturing wave/particle duality

SimonA
Dec 27, 2004 · Replies 38 · Jan 18, 2005

2

Replies: 38

Graduate How Does Schrödinger's Equation Apply to a One-Dimensional Particle in a Box?

FUNKER
Jan 10, 2005 · Replies 15 · Jan 18, 2005

Replies: 15

Graduate EPR paradox with entangled photons in double slit setups

DrChinese
Jan 11, 2005 · Replies 46 · Jan 18, 2005

2

Replies: 46

Graduate Can Loophole-Free Bell Tests Resolve Quantum Nonlocality Debates?

Caroline Thompson
Jan 17, 2005 · Replies 2 · Jan 18, 2005

Replies: 2

Graduate Uncertainty in heisenbergs uncertainty principle

niehls
Jan 17, 2005 · Replies 8 · Jan 18, 2005

Replies: 8

Undergrad Learning group theory for quantum mechanics and particle physics

greatscott
Jan 17, 2005 · Replies 2 · Jan 17, 2005

Replies: 2

Graduate Do quantum computers depend on the many worlds interpretation?

kaos
Jan 12, 2005 · Replies 23 · Jan 17, 2005

Replies: 23

Graduate Problem with this renormalize quantum theory

somy
Jan 16, 2005 · Replies 3 · Jan 16, 2005

Replies: 3

How come my shoes are where I left em last night?

trosten
Jan 10, 2005 · Replies 13 · Jan 16, 2005

Replies: 13

Graduate Is there an archive with important QM articles?

trosten
Jan 11, 2005 · Replies 6 · Jan 16, 2005

Replies: 6

Graduate Faster than light communication?

Aphex_Twin
Jan 16, 2005 · Replies 2 · Jan 16, 2005

Replies: 2

Graduate Why don't electrons have infinite mass when moving at nearly the speed of light?

Muhammad Ali
Jan 14, 2005 · Replies 18 · Jan 15, 2005

Replies: 18

Graduate Is the Law of Conservation of Energy Violated on a Macroscopic Scale?

sid_galt
Jan 14, 2005 · Replies 7 · Jan 15, 2005

Replies: 7

Graduate Quantum Mechanics Exam Question: Hamiltonian and Energy Eigenvalues

chrismuktar
Jan 14, 2005 · Replies 6 · Jan 15, 2005

Replies: 6

Graduate A Kalusza-Klein Hidden Variables Theory

selfAdjoint
Jan 11, 2005 · Replies 8 · Jan 14, 2005

Replies: 8

Graduate EPR cryptography: Bennett, Brassard, and Ekert

JohnBarchak
Jan 12, 2005 · Replies 5 · Jan 14, 2005

Replies: 5

Graduate Bell's theorem and negative probabilities in spin tests

DrChinese
Jan 11, 2005 · Replies 24 · Jan 14, 2005

Replies: 24

Graduate How do detectors at double slit slits work and affect interference?

gonzo
Jan 7, 2005 · Replies 8 · Jan 13, 2005

Replies: 8

Graduate Quantum Mechanics: The Bottom Line from Fuchs and Einstein

JohnBarchak
Jan 13, 2005 · Replies 3 · Jan 13, 2005

Replies: 3

Graduate Aspect's Experiment Was Flawed

Maestro
Aug 16, 2004 · Replies 125 · Jan 13, 2005

5

Replies: 125

Graduate How can we derive quantum mechanical operators?

Sterj
Jan 12, 2005 · Replies 7 · Jan 13, 2005

Replies: 7

Graduate Chris Fuchs Comments on Quantum Crypto

JohnBarchak
Jan 13, 2005 · Replies 3 · Jan 13, 2005

Replies: 3

Undergrad Problem involving light as a particle

lank20125
Jan 12, 2005 · Replies 2 · Jan 13, 2005

Replies: 2

Undergrad Why can two people far apart both see the same distant star?

notsureanymore
Jan 11, 2005 · Replies 26 · Jan 12, 2005

Replies: 26

Graduate Breaking the Speed Limit of Light

prj45
Jan 11, 2005 · Replies 4 · Jan 11, 2005

Replies: 4

Graduate Crossing Symmetry and Mandelstam Variables; and (unrelated) external photons

fliptomato
Jan 4, 2005 · Replies 2 · Jan 11, 2005

Replies: 2

Graduate Incompatability of GRT and Quantum Mechanics

CarstenDierks
Jan 7, 2005 · Replies 8 · Jan 11, 2005

Replies: 8

Undergrad Is Light Truly Weightless in the Realm of Physics?

ironbling
Jan 4, 2005 · Replies 2 · Jan 11, 2005

Replies: 2

Graduate How do photons interact with atoms in specular reflection?

adaml
Jan 3, 2005 · Replies 2 · Jan 10, 2005

Replies: 2

Graduate Is Dirac Notation Standard in QM?

houserichichi
Jan 3, 2005 · Replies 2 · Jan 10, 2005

Replies: 2

Graduate Capacitor plates and tunneling current

sid_galt
Jan 9, 2005 · Replies 4 · Jan 10, 2005

Replies: 4

High School Is Space Really a Vacuum and Does it Determine the Size of the Universe?

pikapika!
Jan 9, 2005 · Replies 3 · Jan 10, 2005

Replies: 3

Graduate Does destroying quantum measurement data restore interference?

Al Marino
Dec 20, 2004 · Replies 18 · Jan 10, 2005

Replies: 18

Graduate Photoelectric effect and moving from A to B

Cheman
Jan 8, 2005 · Replies 6 · Jan 9, 2005

Replies: 6

Undergrad Uncertainty Principal and calculating the future :p (Question)

Supaiku
Jan 7, 2005 · Replies 8 · Jan 9, 2005

Replies: 8

Natural selection acts on the quantum world

ZapperZ
Dec 28, 2004 · Replies 6 · Jan 9, 2005

Replies: 6

Graduate What is helicity in quantum mechanics?

Mk
Jan 8, 2005 · Replies 11 · Jan 9, 2005

Replies: 11

Graduate I cann't undestand Quantum Algorithms. How I can?

cartuz
Jan 6, 2005 · Replies 2 · Jan 8, 2005

Replies: 2

Graduate How do electrons tunnel through vacuum in a scanning tunneling microscope?

sid_galt
Jan 8, 2005 · Replies 2 · Jan 8, 2005

Replies: 2

Graduate Ew quark/anti quark pops into existence

wolram
Jan 7, 2005 · Replies 4 · Jan 7, 2005

Replies: 4

Graduate Is the Moon There When Nobody Looks?

Cosmo16
Jan 3, 2005 · Replies 15 · Jan 7, 2005

Replies: 15

Graduate The universal quantum logic matrix

Loren Booda
Jan 2, 2005 · Replies 13 · Jan 6, 2005

Replies: 13

Graduate Can someone recommend books about QFT?

ben_jamin
Jan 4, 2005 · Replies 6 · Jan 5, 2005

Replies: 6

Graduate Fourier transorm problem has me stumped

jasonc65
Jan 4, 2005 · Replies 3 · Jan 5, 2005

Replies: 3

Undergrad Superconductivity and magnetic fields

mios76
Jan 4, 2005 · Replies 5 · Jan 5, 2005

Replies: 5

Graduate How do we define observe in QM?

scilover89
Dec 18, 2004 · Replies 6 · Jan 5, 2005

Replies: 6

Graduate Question(s) related to Nonlinear Shroedinger Model

jasonc65
Jan 4, 2005 · Replies 6 · Jan 4, 2005

Replies: 6

Graduate Answer for schrodinger cat paradox

scilover89
Dec 27, 2004 · Replies 7 · Jan 4, 2005

Replies: 7

Graduate Questions on An Introduction to Quantum Field Theory by Peskin and Schroeder

fliptomato
Dec 29, 2004 · Replies 5 · Jan 4, 2005

Replies: 5

Looking for a clear explanation of quantum physics for non-specialists

darrenkarp
Dec 28, 2004 · Replies 2 · Jan 4, 2005

Replies: 2

Graduate Why do two electrons in the same state have opposite spins?

trosten
Jan 3, 2005 · Replies 9 · Jan 4, 2005

Replies: 9

Graduate How does EPR and entanglement theory are related?

somy
Dec 28, 2004 · Replies 4 · Jan 4, 2005

Replies: 4

Graduate What frame of reference is used to measure particle momentum in QM?

kristobal hunta
Jan 1, 2005 · Replies 3 · Jan 4, 2005

Replies: 3

Graduate Why is it that all the potentials that we use in QM are classical ?

trosten
Jan 3, 2005 · Replies 2 · Jan 3, 2005

Replies: 2

Undergrad Which hydrogen spectral lines are emitted at a given temperature

Hydr0matic
May 21, 2004 · Replies 14 · Jan 3, 2005

Replies: 14

Graduate Path integrals, particles and spacetime in quantum gravity

Mike2
Jan 2, 2005 · Replies 4 · Jan 3, 2005

Replies: 4

Graduate How does the momentum of photons relate to E=mc² and Ep=hf?

mtong
Dec 27, 2004 · Replies 5 · Jan 2, 2005

Replies: 5

Undergrad Why doesn't stimulated emission cause further absorption to higher energy levels?

Cheman
Dec 4, 2004 · Replies 13 · Jan 2, 2005

Replies: 13

Graduate Can Extra Dimensions and Plank Lengths Explain Quantum Orbital Shifts?

SimonA
Dec 29, 2004 · Replies 9 · Dec 31, 2004

Replies: 9

Graduate How do physicists measure vacuum fluctuations beyond manometer precision?

Clausius2
Dec 27, 2004 · Replies 3 · Dec 30, 2004

Replies: 3

sidebar

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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