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 Casimir Force: Where Does the Energy Come From?
- blackwizard
- · Replies 1 ·
Graduate Transition from Poisson brackets to commutors?
- dantypas
- · Replies 8 ·
Graduate LHV simulation for bell setup based on photon bunching
- vzn
- · Replies 4 ·
Graduate Can Multiple Universes Coexist and Interfere with Each Other?
- michael879
- · Replies 3 ·
Graduate What Does O(\hbar^2) Mean in Commutation Relations?
- kakarukeys
- · Replies 10 ·
Graduate Understand Decoherence in Quantum Computers: How Heat Affects Qubits
- michael879
- · Replies 4 ·
Graduate Two slit experiments with things other than photons
- Nereid
- · Replies 2 ·
Graduate How Many Quantum States Can Four Bosons Have in a Harmonic Oscillator?
- ghotra
- · Replies 1 ·
Graduate Beyond Schrodinger's Cat - a Television Appearance
- Simon 6
- · Replies 6 ·
Graduate Polarization Vector for Quantum EM Field
- TriTertButoxy
- · Replies 2 ·
Graduate Origin of Universe: Big Bang Theory
- Supernovah
- · Replies 7 ·
Graduate What is a CAT state in the beryllium experiment?
- navneet1990
- · Replies 3 ·
Undergrad Do All Temperatures Emit Multiple Wavelengths in Blackbody Radiation?
- davepl
- · Replies 5 ·
Graduate Wave-particle duality question
- davepl
- · Replies 1 ·
Graduate Can Gamma Rays Alone Create Electron-Positron Pairs?
- Chaos' lil bro Order
- · Replies 10 ·
Graduate Why perturbation theory and the Schrödinger equation make no sense
- Tomrocker
- · Replies 19 ·
Graduate Taking up QFT for the first time
- aav
- · Replies 7 ·
Graduate Entangled states in the classical limit
- lalbatros
- · Replies 2 ·
Graduate What does density of states physically represent?
- Repetit
- · Replies 1 ·
Graduate Is Direct Brute Force Quantization Possible for Equations of Motion?
- lokofer
- · Replies 2 ·
Graduate Angle of pilot wave through apperature?
- David Burke
- · Replies 2 ·
Undergrad Preference for lower energy states?
- pivoxa15
- · Replies 12 ·
Graduate Energy States of Electrons in Free Space
- Jackrell
- · Replies 1 ·
Graduate Questioning an application of the Heisenberg uncertainty principle
- vebrown
- · Replies 8 ·
Graduate Quantization on momentum space
- lokofer
- · Replies 4 ·
Graduate About the behaviour of a beam-splitter
- AnssiH
- · Replies 7 ·
Solving the Riddle of Chaotic Particle
- elocm
- · Replies 1 ·
Graduate Peer-Reviewed References for ZapperZ's Ideas on Barut and Bohm de Broglie
- Careful
- · Replies 4 ·
Graduate Could EM/strong/weak force be expressed geometrically?
- bananan
- · Replies 5 ·
Graduate Wave function and Uncertinaty Principle?
- alias25
- · Replies 3 ·
Graduate System with big number of particles
- lokofer
- · Replies 3 ·
Graduate Bell's theorem and Harrison's (2006) inequality
- wm
- · Replies 101 ·
Graduate How does quantum mechanics affect the classical electrostatic force?
- exponent137
- · Replies 4 ·
Graduate What is the Ground State Energy of a Harmonic Oscillator?
- Sterj
- · Replies 20 ·
Graduate Why do we think particle is wave and probability also wave?
- HeilPhysicsPhysics
- · Replies 7 ·
Graduate Rotation Energy Levels and Degeneracy.
- Clausius2
- · Replies 4 ·
Graduate Why does blackbody radiation show a continuous spectrum if energy is quantized?
- Manaf
- · Replies 3 ·
Graduate The Heisenberg Uncertainty Princeple
- FlyInDance
- · Replies 1 ·
Graduate Density matrix for QFT from the path integral?
- wandering.the.cosmos
- · Replies 4 ·
Graduate Has a unified theory explaining gravity and electromagnetism been found?
- cracker
- · Replies 4 ·
Graduate What is the Relational Interpretation of Quantum Mechanics?
- Tipi
- · Replies 12 ·
Graduate Are Unphysical Renormalization Conditions in QFT Justifiable?
- fliptomato
- · Replies 3 ·
Graduate Why is the square modulus of the wave function used in quantum mechanics?
- lalbatros
- · Replies 6 ·
Undergrad Does the equation E=mc2 prove that energy and mass are equivalent?
- DavidF
- · Replies 6 ·
Graduate How can backwards-in-time signals find their target in Stenger's model?
- Canute
- · Replies 4 ·
Graduate Absolute Zero or Uncertainty Principal?
- Dropabomb
- · Replies 8 ·
Graduate Spin and orbital magnetic moments?
- pivoxa15
- · Replies 4 ·
Graduate Is this solid-state electrical generator patent based on real physics?
- dinu
- · Replies 4 ·
High School What is the menaing of standing plane waves ?
- skarthikselvan
- · Replies 2 ·
Graduate Commutation relations trouble (basic)
- quasar987
- · Replies 5 ·
Undergrad Can You Really Go Through Walls According to Physics?
- HeilPhysicsPhysics
- · Replies 1 ·
Graduate Observable and interaction
- lalbatros
- · Replies 1 ·
Undergrad Why Does My Emission Spectra Prediction Program Differ from Lab Results?
- Eternius
- · Replies 1 ·
Graduate Which assumption fails in Bell's theorem experiments
- roundedge
- · Replies 50 ·
Graduate Photon Interaction: Manish Mehta Question
- manish mehta
- · Replies 3 ·
Graduate Dimensions of a probability amplitude (matrix element)?
- fliptomato
- · Replies 3 ·
Undergrad What causes natural decay and why can't it be avoided?
- superweirdo
- · Replies 9 ·
Undergrad How does increasing distance affect potential energy in an atom?
- Helicobacter
- · Replies 9 ·
Graduate Reading the FAQ on how phonons
- xiankai
- · Replies 1 ·
Graduate Do photons have finitely many wavelengths?
- yury
- · Replies 7 ·
Graduate Why does quantum tunneling violate causality and classical physics?
- superweirdo
- · Replies 19 ·
Graduate Why Does Observing the Double Slit Experiment Change the Outcome?
- Geraint
- · Replies 1 ·
Graduate Can quantum computers isolate atoms from electromagnetic waves and vacuum fluctuations?
- alias25
- · Replies 10 ·
Graduate Why do particles from quantum fields obey single-particle quantum mechanics?
- TriTertButoxy
- · Replies 36 ·
Graduate Double slit experiment: does waveform collapse without recording measurements?
- samik83
- · Replies 6 ·
Undergrad What is a blackbody?What special of its radiation?
- HeilPhysicsPhysics
- · Replies 1 ·
Graduate Naive Feynman diagram question
- denni89627
- · Replies 1 ·
Graduate Is there any approximation to the two particle density matrix
- chuckschuldiner
- · Replies 7 ·
Undergrad What is a Pure State and Mixed State?
- touqra
- · Replies 98 ·
Graduate Do antiparticles really go back in time?
- THE 1
- · Replies 12 ·
Graduate Circuit Response to Gamma Rays
- cosmicjello
- · Replies 1 ·
Graduate QFT and unitary Lorent representation
- simic4
- · Replies 5 ·
Graduate Can Photons Ever Acquire Mass Through Theoretical Processes?
- ShadowX3
- · Replies 17 ·
Graduate Why does an observer affect the electron?
- quddusaliquddus
- · Replies 96 ·
High School What Is the Size of a Photon?
- van gogh
- · Replies 11 ·
Graduate Schrodinger equation in gravitational field
- exponent137
- · Replies 4 ·
Undergrad Looking for explanation of randomness.
- WARTORIOUS
- · Replies 78 ·
Graduate Do massless particles always have momentum in the direction of travel?
- NateTG
- · Replies 12 ·
Graduate Why Do Spin 1/2 Particles Behave Like a Twisted Ribbon?
- Edward Green
- · Replies 3 ·
Graduate Invariant quantities for antimatter
- actionintegral
- · Replies 9 ·
High School What does superposition mean in linear algebra?
- ArielGenesis
- · Replies 1 ·
Graduate Brian Green's Beam Splitter Experiments
- MojaveJoe
- · Replies 100 ·
Graduate Is superposition real or just a choice of basis?
- selfAdjoint
- · Replies 27 ·
Graduate Matrix Mechanics for the Bored Wave Mechanics Student
- wavemaster
- · Replies 2 ·
Graduate Does wave-particle duality reflect measurement versus time evolution?
- Ratzinger
- · Replies 4 ·
Graduate Eigenkets of the field operator.
- TriTertButoxy
- · Replies 2 ·
Graduate Heisenberg and quantum mechanics
- superweirdo
- · Replies 74 ·
Graduate Understanding Multidimensional Time
- Ghetalion
- · Replies 9 ·
Undergrad Can Technology Convert Matter to Energy and Vice Versa?
- superweirdo
- · Replies 6 ·
Graduate Pauli-Villars regularization and Ward-Takahashi identity in Peskin chapter 7
- simic4
- · Replies 3 ·
Graduate Understanding Fourier Series and Heisenberg Uncertainty Principle
- OS Richert
- · Replies 4 ·
Undergrad Why must wave frequencies be integers?
- BioMatrix
- · Replies 6 ·
Graduate What Does the Wave Function y(r,t) Represent in Quantum Mechanics?
- OS Richert
- · Replies 5 ·
High School Hiesenberg uncertainty principle in 100 ACII characters or less
- hedons
- · Replies 11 ·
Graduate Quantum Evolution by Johnjoe McFadden: Fascinating Read on Quantum Physics
- Syntax-Error
- · Replies 3 ·
Graduate Mutli-partite states and operators
- MaverickMenzies
- · Replies 1 ·
Graduate Explanation for term in formula, QFT
- beta3
- · Replies 2 ·
Graduate Could gravity be a manifestation of the Casimir effect?
- jjalexand
- · Replies 5 ·
Graduate Storing Photons: A Theoretical Possibility?
- argonurbawono
- · Replies 4 ·
Graduate Quantum entanglement information transfer proven?
- Cane_Toad
- · Replies 12 ·