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.
Sub-forums
Threads
Graduate Possible explanation for the wave-particle duality ?
- probert84
- · Replies 92 ·
Graduate How do we know (BΨ) is not equal to zero?
- PFfan01
- · Replies 3 ·
Graduate Can someone explain the process of finding c(n) in an infinite well?
- iScience
- · Replies 3 ·
Graduate No charge polarization on positronium in p-orbital state ?
- xortdsc
- · Replies 2 ·
Graduate Does the act of observing/measuring define an arrow of time?
- pondzo
- · Replies 3 ·
Graduate Irreducible graphs and srednicki's book
- geoduck
- · Replies 3 ·
Graduate Can Quantum Suicide and Being in Two Places at Once Coexist?
- Chase
- · Replies 8 ·
Graduate What are the implications of the Pauli Exclusion Principle across the universe?
- airydisc2004
- · Replies 12 ·
Graduate What is the magnitude of the relativistic wave-vector?
- Abigale
- · Replies 2 ·
Graduate Is the QED Lagrangian Invariant Under C, P, or T Separately?
- johne1618
- · Replies 1 ·
Graduate Negative variance of an observable quantity
- Mandragonia
- · Replies 49 ·
Graduate How Does EPR Spin Measurement Challenge Quantum Mechanics?
- aaaa202
- · Replies 8 ·
Graduate Quantum View of Electron and Photon
- San K
- · Replies 3 ·
Graduate Can an electron emit a photon without returning to ground state?
- MathewsMD
- · Replies 4 ·
Graduate Is There a Relationship Between Principal Quantum Number and Amplitude?
- rauletechuleta
- · Replies 4 ·
Graduate Tunneling from Rectangular barrier - Exponential Decay ?
- svrphy
- · Replies 5 ·
Graduate Time-independence of seperable solutions of the Schrödinger eqn
- Runei
- · Replies 3 ·
Graduate Do single photons disperse like a wave?
- xortdsc
- · Replies 15 ·
Graduate Is the product rule on operators different from traditional calculus?
- Abigale
- · Replies 2 ·
Graduate Proton Vibrations: The Behavior of Protons When Not Bound to Nucleus
- Antigone
- · Replies 6 ·
Graduate Ground state: singlet or triplet
- aaaa202
- · Replies 2 ·
Graduate Why does the operator S_p - S_n in deuteron result in a zero expectation value?
- Silversonic
- · Replies 3 ·
Graduate How Do Individual Photons Behave in the Double Slit Experiment?
- gonadgranny
- · Replies 3 ·
Graduate Atomic recoil and the polarization of photon emitted
- megadethized
- · Replies 5 ·
Graduate What Are Hermitian Operators and Their Significance in Quantum Mechanics?
- Nikitin
- · Replies 5 ·
Graduate Entanglement and separable state
- phyky
- · Replies 1 ·
Graduate Is the wave function/packet an actual property
- batmanandjoker
- · Replies 7 ·
Graduate Wave function orthogonal components
- Alfred Cann
- · Replies 7 ·
Graduate Double slit with time measurement
- DParlevliet
- · Replies 67 ·
Undergrad Why Doesn't Mass of Electrons Increase?
- nil1996
- · Replies 5 ·
Graduate Transition of free to bound electrons
- xortdsc
- · Replies 14 ·
Graduate Position variables in the wave function
- SheikYerbouti
- · Replies 1 ·
Graduate Sudden reduction in spring stiffness for quantum harmonic oscillator
- andrewthorn
- · Replies 1 ·
Graduate Why the generator operators of a compact Lie algebra are Hermitian?
- ndung200790
- · Replies 9 ·
Graduate Wavefunction Normalization at Different Times
- user3
- · Replies 8 ·
Graduate Why does the commutator term vanish in d⟨p⟩/dt?
- iScience
- · Replies 3 ·
Graduate Commutator for fermion operators?
- pellman
- · Replies 2 ·
Graduate One thing cannot be in two places at the same time
- batmanandjoker
- · Replies 36 ·
Graduate Black hole information paradox?
- gstar
- · Replies 1 ·
Graduate Commutation of time derrivative
- Abigale
- · Replies 3 ·
Graduate Entangled photons and polarisation.
- Dadface
- · Replies 8 ·
Graduate Unusual uncertainty relations question
- liometopum
- · Replies 10 ·
Graduate Generator of translations involving TIME
- AxiomOfChoice
- · Replies 7 ·
Graduate Understanding Spinorial Representations in Relativistic QM/QFT
- WannabeNewton
- · Replies 11 ·
Graduate What happens if the screen in young's double slit experiment is replac
- junfan02
- · Replies 6 ·
Graduate How do multiple electrons behave in the Kronig-Penny model?
- mamunalsiraj
- · Replies 2 ·
Graduate Two-photon physics/quantum electrodynamics
- Antigone
- · Replies 1 ·
Graduate Could we witness other universes begin?
- GreatScot
- · Replies 1 ·
Graduate What is the Time Evolution of the Angular Momentum Operator?
- Hazzattack
- · Replies 8 ·
Graduate Deriving Feynman diagrams from functional derivatives in QFT
- chern
- · Replies 3 ·
Graduate Some questions regarding Statistical and Quantum Mechanics
- Shan K
- · Replies 10 ·
Graduate What causes a collapse - and does it depend on frames of reference?
- wheelersbit
- · Replies 28 ·
Graduate Can second quantization on strings create states out of the vacuum?
- Shain
- · Replies 17 ·
Graduate Regarding the creation and annhilation operators in QFT
- Kontilera
- · Replies 11 ·
Graduate Second Quantization-Kinetic operator
- ChrisVer
- · Replies 1 ·
Graduate Field strength tensor / matrix
- Abigale
- · Replies 5 ·
Graduate Calculating Eigenenergies of Photon in Cavity Hamiltonian
- Abigale
- · Replies 4 ·
High School What interference pattern of double-slit experiment does mean
- vijayantv
- · Replies 45 ·
Graduate Is the energy operator (time derivative) a linear one?
- MHD93
- · Replies 3 ·
Graduate Probability Amplitude Maxwell's Equations
- Bashyboy
- · Replies 8 ·
Graduate Quantum corrections to massless fermionic field
- Mesmerized
- · Replies 14 ·
Graduate Pure, proper mixed, and improper mixed states in laymen's terms
- batmanandjoker
- · Replies 12 ·
Graduate Hooke's Law on a microscopic level
- BrainSalad
- · Replies 6 ·
Graduate Measurement, information and entropy
- jk22
- · Replies 9 ·
Graduate How do we know E is energy in the time-independent Schrodinger eq
- Woland
- · Replies 3 ·
Graduate How does quantum entropy relate to superdense coding and quantum cryptography?
- iorfus
- · Replies 12 ·
Graduate Is Quantum Time a Vector Instead of a Scalar?
- Jilang
- · Replies 11 ·
Graduate Double Slit Experiment: New Idea About How it Works?
- DwithQs
- · Replies 4 ·
Graduate What causes an electron to return to its ground state?
- Wheelwalker
- · Replies 5 ·
Graduate Absorption And Emission Of Light According To Quantum Mechanics
- ns_phonon
- · Replies 2 ·
Graduate Are Planck Units the Ultimate Limit for Measurements?
- Tclack
- · Replies 4 ·
Graduate Radius of effect of atomic interactions
- jshrager
- · Replies 1 ·
Graduate What happens on un-ionized electrons after ionization?
- goodphy
- · Replies 5 ·
Undergrad Why does the Sun have a continuous spectrum instead of discrete lines?
- Entangled
- · Replies 5 ·
Graduate Uncertainty Principle and the Second Law
- Suwailem
- · Replies 4 ·
Graduate What is the radius of a superposition
- batmanandjoker
- · Replies 12 ·
Graduate Almost uncontrollable fascination with astro/quantum physics
- jman
- · Replies 2 ·
Graduate Feynman diagrams and momentum conservation
- johne1618
- · Replies 1 ·
Graduate Quantum Spin vs Spin - Understand the Difference
- anorred
- · Replies 25 ·
Graduate Steve Hawking's new take on black holes
- Integral
- · Replies 1 ·
Graduate What Does the Term Field Signify in Quantum Field Theory?
- Bryan278
- · Replies 3 ·
Graduate One dimensional Coulomb potential
- ShayanJ
- · Replies 1 ·
Graduate Do all electrons from an electron gun pass through the slits in a double slit experiment?
- bigsmiles
- · Replies 5 ·
Graduate How does non-locality explain single-particle superposition?
- greypilgrim
- · Replies 8 ·
Graduate Photon and anti-photon annihilation?
- Goliatbagge
- · Replies 8 ·
Graduate Translating a Wavefunction: Differentiating with Respect to ##a_x##
- unscientific
- · Replies 8 ·
Graduate How does the pilot wave theory explain the double slit experiment?
- Filmmakerdoc
- · Replies 27 ·
Graduate Does that classical world even exist?
- batmanandjoker
- · Replies 6 ·
Graduate Inner Product in this step of the working
- unscientific
- · Replies 13 ·
Graduate Can't figure out how hawking radiation fixes thermodynamic problem
- Stonius
- · Replies 12 ·
Graduate How do you build a wave packet and inital conditions
- fede.na
- · Replies 3 ·
Graduate What is the pure imaginary number in Dirac's Principles of QM?
- Catflap
- · Replies 17 ·
Graduate Coarsening the reference vs. the detection?
- .Scott
- · Replies 4 ·
Graduate Ground state of harmonic oscillator
- unscientific
- · Replies 2 ·
Graduate Why does weak localization focus on time-reversed path pairs?
- aaaa202
- · Replies 5 ·
Graduate Step on Weinberg's QM Book (pp. 154-155)
- carlosbgois
- · Replies 1 ·
Graduate Generalized Schrödinger equation
- Maximise24
- · Replies 6 ·
Graduate Can a universe form from a true vacuum through quantum tunneling?
- mattattack
- · Replies 12 ·
Graduate Quantum theory and the implications on human life
- iforu
- · Replies 27 ·
Graduate Classical versus quantum interference.
- Dadface
- · Replies 10 ·