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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Graduate Compton Effect: Electron Ejection & Potential Energy
- vin300
- · Replies 2 ·
Graduate How can an operator have an expected value if operators are instructions?
- skiboo
- · Replies 3 ·
Graduate Virtual particle production beyond the event horizon.
- CarlosLara
- · Replies 3 ·
Graduate What are the implications of electrons splitting into smaller quasi-particles?
- Runner 1
- · Replies 2 ·
Graduate 1 Electron, 2 Slits, and the Rest of the Pattern
- Meta.Joe
- · Replies 5 ·
Graduate Is quantum mechanics a complete theory of nature?
- nortonian
- · Replies 69 ·
Graduate Are atoms truly physical entities or simply arrangements of energy?
- josh1492
- · Replies 4 ·
Graduate Quantum Computing: Attosecond Double-Slit Phenomena
- JPBenowitz
- · Replies 3 ·
Graduate What Is the Significance of 720 Degree Symmetry in Fermion Rotations?
- zen loki
- · Replies 9 ·
Undergrad Why do higher energy levels require less energy to remove electrons?
- scientifico
- · Replies 1 ·
Graduate What are the postulates of QFT?
- snoopies622
- · Replies 29 ·
Graduate Commutation relations for Spin opertors
- sakkoyun
- · Replies 4 ·
Graduate Cesium Atom quantum mechanical description
- TheDestroyer
- · Replies 10 ·
Graduate Can Wave and Particle Be Separated in a Modified Double-Slit Experiment?
- C. Bernard
- · Replies 4 ·
Graduate How Do We Compute the Expectation Value <x̂p̂> in Quantum Mechanics?
- ertansinan
- · Replies 1 ·
Graduate Why does integrating out the delta function change Feynman parameter limits?
- Elwin.Martin
- · Replies 5 ·
Graduate What is the exchange integral?
- Repetit
- · Replies 3 ·
Graduate (properties of) what travels through all possible paths?
- San K
- · Replies 4 ·
Graduate What is the functional integral theorem for polynomial times Gaussian integrals?
- Chopin
- · Replies 3 ·
Graduate Is Fock space always separable?
- eoghan
- · Replies 6 ·
Graduate Does a charge have spin outside an atom?
- aditya23456
- · Replies 1 ·
Undergrad Possibly Stupid Question on Atom Smashing
- Willard37
- · Replies 3 ·
Graduate Deriving Coulomb's Law with Virtual Photon Exchange Theory: Complete Explanation
- sharma_satdev
- · Replies 2 ·
Graduate Equipartition theorem and molecule of CO
- fluidistic
- · Replies 2 ·
Graduate EL Equations for the modified electromagnetic field Lagrangian
- Irrational
- · Replies 3 ·
Graduate Infinite Square Well and Energy Eigenstate question
- SeannyBoi71
- · Replies 1 ·
Graduate Possible Explanations of Spooky action at a distance
- michaelsatt
- · Replies 1 ·
Graduate Does future measurement freedom explain uncertainty principle limitations?
- balabanscott
- · Replies 4 ·
Graduate Imaginary numbers and the real part of the Schrodinger Equation
- Hypatio
- · Replies 3 ·
Graduate Why can't quantum computers be used to solve SAT?
- IttyBittyBit
- · Replies 3 ·
Graduate Is Dirac's Sea Still Relevant in Modern Physics?
- debra
- · Replies 1 ·
Graduate Does the uncertainty relation apply to the past?
- Goodison_Lad
- · Replies 2 ·
Graduate Understanding - how universe/reality plays dice
- San K
- · Replies 37 ·
Graduate How does spin work in the position representation?
- lugita15
- · Replies 5 ·
Graduate Why does requiring δψ = 0 give the BPS equation?
- ismaili
- · Replies 1 ·
Graduate To what extent is wind due to quantum indeterminacy
- bobsmith76
- · Replies 1 ·
Undergrad Energy values in infinite potential well
- phys2
- · Replies 2 ·
Graduate Is it the fallacy of my thought?
- dpa
- · Replies 9 ·
Graduate Proving Entanglement - Do we need Bells Theorem?
- San K
- · Replies 3 ·
Graduate Angular momentum and its uncertainty
- fluidistic
- · Replies 4 ·
Graduate Do the degrees of freedom change for particles in a relativistic system?
- LarryS
- · Replies 1 ·
Graduate Braket Notation: Is <φ|x+y+z|φ> = <φ|x|φ> + <φ|y|φ> + <φ|z|φ>?
- brydustin
- · Replies 8 ·
Graduate Time independence of probability amplitudes
- saim_
- · Replies 29 ·
Undergrad Smallest amount of vibrational energy
- LocalStudent
- · Replies 2 ·
Graduate What Are Majorana Particles and What Are their Potential Uses?
- Bobbywhy
- · Replies 1 ·
Graduate DeBroglie Wavelength: Proton at Room Temp Scattering Behavior
- edpell
- · Replies 5 ·
Graduate Difference between mixed states and pure states.
- Casco
- · Replies 8 ·
Graduate Intensity in Electromagnetism versus probability density in Quantum Mechanics
- sarge1hundred
- · Replies 3 ·
Graduate How to solve for Hamiltonian gradient?
- kulimer
- · Replies 3 ·
Graduate What are the next steps in constructing \phi_{3}^{4} in Field Theory?
- DarMM
- · Replies 1 ·
High School What does Schrödinger's cat experiment demonstrate?
- Ima_Fraud
- · Replies 6 ·
Graduate Can quantum tunneling in solids generate useful energy when heated?
- Stanley514
- · Replies 2 ·
Graduate Dirac equation and gamma factor
- exponent137
- · Replies 1 ·
Graduate Conceptual Foundations of Quantum Mechanics - Bernard D'Espagnat
- tom.stoer
- · Replies 4 ·
Graduate What is the relationship between quantum states and the size of the universe?
- trfinck
- · Replies 2 ·
Graduate Does Planck length and irrational solutions mean time can't be reversed?
- TylerH
- · Replies 7 ·
Graduate Slater Determinants for Large numbers of electrons
- t_evans
- · Replies 1 ·
Graduate Can we quantize Aristotelian Physics?
- lugita15
- · Replies 1 ·
Graduate Understanding Particle Self-Interference in the Double Slit Experiment
- blokeice
- · Replies 2 ·
Graduate Alice/Bob Instant communication protocol. Does this work?
- al onestone
- · Replies 19 ·
Graduate Electronic Transitions in Protium vs. Deuterium
- imhotep
- · Replies 1 ·
Graduate How were Nimtz's faster-than-light tunneling experiments debunked?
- GTOM
- · Replies 3 ·
Graduate Why isn't Pauli Exclusion Principle a force?
- azabak
- · Replies 4 ·
Graduate Is Quantumness of Product States a Violation of Classical Realism?
- DrChinese
- · Replies 9 ·
Graduate What Are the Two Helicities of Electrons and Their Implications?
- cygnet1
- · Replies 3 ·
Graduate Is Casamir Effect Related to Anti-Matter?
- debra
- · Replies 3 ·
Graduate Virtual photon-antiphoton pairs?
- johne1618
- · Replies 16 ·
Graduate How Do Particles Mediate Forces (Strong Nuclear, Weak Nuclear)
- beatlemaniacj
- · Replies 3 ·
Graduate Quantum Fourier Transform of Periodic States
- maverick280857
- · Replies 3 ·
Graduate What are quantum fluctuations ?
- Aidyan
- · Replies 7 ·
Graduate Wave function of light: are photons waves of probability?
- darkxponent
- · Replies 12 ·
Graduate Could very low energy virtual particles last a very long time?
- johne1618
- · Replies 1 ·
Graduate Flaw in Greene's Bell test illustration from The fabric of the cosmos
- purpledog
- · Replies 17 ·
Graduate Desctructive inteference of coherent light beams
- DanFrederiksn
- · Replies 19 ·
Graduate What is the meaning of the ∂ symbol in wave function equations?
- 3m0k177y
- · Replies 1 ·
Graduate What is the scale or density when the double slit experiment stops working?
- jaketodd
- · Replies 15 ·
Graduate How Does Introducing a Second Magnetic Field Affect NMR and Quantum Behavior?
- pmiranda
- · Replies 2 ·
Graduate Clasical and quantum harmonic oscillator - correspondence principle
- exponent137
- · Replies 2 ·
Graduate Can an airplane go through a quantum tunnel
- bobsmith76
- · Replies 5 ·
Graduate Bound state transitions in QFT
- Chopin
- · Replies 1 ·
Graduate How does quantum mechanics resolve determinism in the clockwork universe?
- bfusco
- · Replies 2 ·
High School Threshold frequency of metals
- Olly_price
- · Replies 4 ·
Graduate What is the purpose of the renormalization group?
- AuraCrystal
- · Replies 3 ·
Graduate The radial schrodinger equation
- MrMultiMedia
- · Replies 8 ·
Graduate So light has dual nature but I was wondering
- Abidal Sala
- · Replies 2 ·
Undergrad Magnetic Field Orbital Splitting
- MrMultiMedia
- · Replies 1 ·
Graduate Semiclassical exact expression ?
- zetafunction
- · Replies 1 ·
Graduate How Does Phase Affect Quantum State Transformations and Interference Patterns?
- deneve
- · Replies 5 ·
Undergrad How is a new photon produced in the Compton effect?
- darkxponent
- · Replies 3 ·
Graduate Are anyons distinguishable or indistinguishable particles?
- complement
- · Replies 13 ·
Graduate Measuring which path in Hardy's paradox, results
- msumm21
- · Replies 1 ·
Undergrad Can waves of different types produce interference?
- corebore
- · Replies 1 ·
Graduate Matter waves of various particles - do they interact?
- San K
- · Replies 1 ·
Graduate Do un-entangled photons exist?
- San K
- · Replies 3 ·
Graduate Wigner's theorem, Bargmann's proof
- Fredrik
- · Replies 12 ·
Graduate Wick's theorem for other statistics
- MelvinSmith
- · Replies 1 ·
Undergrad Why does wave theory fail for the photoelectric effect?
- elemis
- · Replies 10 ·
Graduate Addition of spin angular momenta
- epsilonjon
- · Replies 3 ·
Graduate Why is superdeterminism not the universally accepted explanation of nonlocality?
- jadrian
- · Replies 395 ·
Undergrad How do electrons diffract if they're particles?
- Sofie1990
- · Replies 7 ·