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.
Threads
Graduate Isn't all action, spooky action at a distance
- g.lemaitre
- · Replies 15 ·
Graduate What we know about the foundations of Quantum Mechanics?
- Ezio
- · Replies 2 ·
Graduate Is a slit automatically also a detector?
- friend
- · Replies 8 ·
Graduate What are the implications of this experiment?
- StevieTNZ
- · Replies 270 ·
Graduate Zero Point Energy: Harmonic Oscillator vs Rigid Rotator
- Useful nucleus
- · Replies 5 ·
Graduate I am not sure to put this in this secton or computer section
- billa12
- · Replies 2 ·
Graduate Does any field, other than gravity, bend space-time?
- San K
- · Replies 10 ·
Graduate Identical fermions in a box - degenerate states
- dipole
- · Replies 4 ·
Graduate Help clarify the probability of pure states and mixture of states
- KFC
- · Replies 5 ·
Graduate A simple quantum experiment: what have I got wrong?
- JollyOlly
- · Replies 10 ·
Graduate Bloch modes and normal waveguide modes- help to clear up
- jxwlhs
- · Replies 1 ·
Graduate Normalization of Radial wavefunction of hydrogen atom
- Arafat Sagar
- · Replies 4 ·
Graduate Covariant Notation: Understanding Its Basics and Applications
- help1please
- · Replies 1 ·
Graduate Velocity Distribution function of molecule at low temperature
- aihaike
- · Replies 3 ·
Graduate Quantum Nonlocality and Causation
- rkn
- · Replies 1 ·
Graduate What is the minimum level of energy in quantum physics and who determined it?
- balulu
- · Replies 5 ·
Graduate Find units of transition dipole moment
- sshrestha
- · Replies 1 ·
Graduate Defining velocity distribution
- bob900
- · Replies 5 ·
Graduate Source of Casimir effect energy
- gildomar
- · Replies 18 ·
Graduate I can't visualize spin I know that its not just a particle rotating
- Ezio3.1415
- · Replies 6 ·
Graduate Necessity of Bell's experiment
- guillefix
- · Replies 7 ·
Graduate Average Randomness Thought experiment
- ImaBeast
- · Replies 4 ·
Graduate Is there a consensus on Bell's Theorem and its implications?
- CAF123
- · Replies 16 ·
Graduate Role of hermitian and unitary operators in QM
- Inam
- · Replies 2 ·
Graduate Can Sending Signals Through Time Help Predict the Future?
- friend
- · Replies 9 ·
Graduate New and have a few initial questions.
- Rcbs
- · Replies 21 ·
Graduate Layman question about quantum theory.
- jsicolo
- · Replies 5 ·
Graduate The Role of Eigenvectors and Eigenvalues in Quantum Mechanics
- MadRocketSci2
- · Replies 6 ·
Graduate Polarization vector in Peskin & Schroeder QFT
- ianhoolihan
- · Replies 12 ·
Graduate High energy particles and uncertainty
- Lapidus
- · Replies 1 ·
Undergrad Combining light beams question
- jimgraber
- · Replies 2 ·
Graduate Which order do you take derivative of delta function?
- geoduck
- · Replies 1 ·
Graduate Why Does Bell's Calculation Yield a Negative Cosine?
- Adam Lewis
- · Replies 1 ·
Graduate Interesting New FQXi Contest Essay re: Signal Causality
- nikman
- · Replies 1 ·
Graduate Why cant a particle go through one slit but behave as if it went through both?
- scrappykoala
- · Replies 17 ·
Graduate Help with the Schrödinger Equation.
- 96hicksy
- · Replies 14 ·
Graduate Why do atoms want a full outer shell in quantum mechanics?
- epsilonjon
- · Replies 2 ·
Graduate Degenerate states and wavefunction collapse
- VantagePoint72
- · Replies 9 ·
Graduate Does the Nucleus Have a Wave Function?
- calvinjhfeng
- · Replies 3 ·
Graduate Why do we consider the evolution (usually in time) of a wave function ?
- rajesh_d
- · Replies 2 ·
Graduate Why is the Braid Group Infinite?
- gioialorusso
- · Replies 1 ·
Graduate Classifying electron orbitals by nodes
- tiny-tim
- · Replies 4 ·
Graduate De Sitter Space and Virtual Particles
- JPBenowitz
- · Replies 1 ·
Graduate Question About Quantum Numbers
- Aero51
- · Replies 9 ·
Graduate Spin 1/2-Raising and Lowering operators question
- tjny699
- · Replies 9 ·
Graduate Calculating the frequency of the fundamental vibrational mode
- mycotheology
- · Replies 1 ·
Graduate Quantum Harmonic Oscillator Complete System
- YAHA
- · Replies 1 ·
Graduate Propagator for inverted harmonic potential.
- FedEx
- · Replies 1 ·
Graduate Schrodinger's Cat- Cat variations causing loopholes in the paradox?
- Drake Wolfe
- · Replies 5 ·
Graduate How are correlation functions defined for non-uniform operator theories?
- UndeadCat
- · Replies 2 ·
Graduate Properties of derivatives of a wavefunction?
- Torboll1
- · Replies 1 ·
Undergrad What are the shapes of atomic orbitals
- shivamdabas
- · Replies 15 ·
Graduate Dirac Matrix Property? Possible Book mistake?
- silence11
- · Replies 7 ·
Graduate What is the Meaning of Expectation and Deviation of an Operator?
- esornep
- · Replies 5 ·
Graduate Square integrable functions - Hilbert space and light on Dirac Notation
- esornep
- · Replies 4 ·
Graduate Faster than Light Information Sending Solved?
- anthony.zeedy
- · Replies 23 ·
Graduate Can Coherence Be Restored in Quantum Systems?
- San K
- · Replies 9 ·
Graduate How Does Quantum Entanglement Create Spooky Action at a Distance?
- rkn
- · Replies 22 ·
Graduate Wave Function Collapse and Bayesian Probabilty
- unchained1978
- · Replies 5 ·
Graduate Spherical Tensor operators for half-integers
- jfy4
- · Replies 4 ·
Graduate Why do we use Gauge Theories to describe local conservation of charge?
- the_pulp
- · Replies 5 ·
Graduate The Lagrangian formalism of Quantum Field Theory
- S_klogW
- · Replies 8 ·
Graduate Quantum algorithms on Graphs VS Quantum Graphs
- fedonman
- · Replies 4 ·
Graduate Energy of a Photon: Frequency, Intensity, Momentum
- Super Kirei
- · Replies 19 ·
Graduate Matrix operators Dirac notation
- Master J
- · Replies 2 ·
Graduate Sanity check: Kitaev's quantum computing book
- Physics Monkey
- · Replies 3 ·
Graduate How Does the Bogoliubov Transformation Apply in BCS Theory with MFA?
- arojo
- · Replies 11 ·
Graduate Difference between a particle and its field
- San K
- · Replies 3 ·
Graduate Dirac notation and conjugate transpose in Sakurai
- Master J
- · Replies 3 ·
Graduate Why the photoelectric cross section decreases with the energy of the photon?
- wdlang
- · Replies 11 ·
Graduate Contextuality and Non-Locality
- audioloop
- · Replies 4 ·
Undergrad Basic question regarding Maxwells distribution
- Rhydo
- · Replies 2 ·
Graduate Relativistic Equation Questions
- CAF123
- · Replies 15 ·
Graduate Is the universe a fermion or a boson?
- bwang8
- · Replies 6 ·
Graduate How is the commutator derived through the general form of expectation value?
- Elekko
- · Replies 17 ·
Graduate Is Degeneracy in Quantum States Equally Probable in Thermodynamic Equilibrium?
- hokhani
- · Replies 3 ·
Graduate Understanding the Role of Poles in the Propagator for Massive Vector Fields
- eoghan
- · Replies 3 ·
Graduate Wave Function Collapse: Observers & Probability in Schrodinger's Cat Experiment
- leonstavros
- · Replies 4 ·
Graduate Nature of Time in Physics: A Question
- mysearch
- · Replies 19 ·
High School Does anyone know if the fastest velocity of light is not fastest anymore?
- louisgeorge
- · Replies 6 ·
Graduate Bending Radiation: Heat Pumps and Beating Carnot's Law
- philrainey
- · Replies 4 ·
Graduate The dimensionality of the state space of a quantum system
- jcsd
- · Replies 18 ·
Undergrad What Does Black Light Do to a Blackbody?
- philrainey
- · Replies 4 ·
Graduate Expanding over R and L polarisations
- StevieTNZ
- · Replies 8 ·
Graduate Double slit confusion from observed particle dynamics.
- Sicphys
- · Replies 7 ·
Graduate Can Quantum Physics Reveal Higher Dimensions Beyond Our Perception?
- ArtistIC
- · Replies 4 ·
Undergrad General explaination of standard model/particles in general?
- unanimousteen
- · Replies 2 ·
Graduate TIme-independent schrodinger equation
- AbsoluteZer0
- · Replies 1 ·
Undergrad Measuring Momentum: Is One Measurement Enough?
- Fiziqs
- · Replies 14 ·
Graduate Understanding The ever elusive Photon Model
- toneboy1
- · Replies 17 ·
Graduate Time-dependent Schrodinger equation for many particles
- AxiomOfChoice
- · Replies 1 ·
Graduate Solving Schroedinger's equation for Step Potential
- uday1236
- · Replies 2 ·
Graduate A thought experiment (excuse me if I have wrong information, i'm new)
- tracefleeman
- · Replies 9 ·
Graduate Feymman's theory, double slit experiment - Stephen Hawking
- jaumzaum
- · Replies 2 ·
Graduate Trace as a product of operators
- intervoxel
- · Replies 2 ·
Graduate Lasers/lifetime of metastable states on brightness of beam
- CAF123
- · Replies 1 ·
Graduate Eigen functions of momentum operator
- esornep
- · Replies 3 ·
Graduate Phase Factor of Spinors (what they represent)
- lzydesmond
- · Replies 18 ·
Graduate A Pauli and a Dirac electron, momentum density and spin.
- Spinnor
- · Replies 4 ·
I was watching this documentary.Is this true?
- silvercats
- · Replies 2 ·