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 Quantum vacuum, virtual particles and ''friction''
- asimov42
- · Replies 3 ·
Graduate Empty space can set objects in motion
- Monique
- · Replies 24 ·
Graduate Rainbows and wave-particle duality
- Nano-Passion
- · Replies 9 ·
Graduate Is the wave-function frequency of subatomic particles affected by gravity?
- JDude13
- · Replies 5 ·
Graduate Some confusions about interaction picture, in peskin
- kof9595995
- · Replies 16 ·
Graduate Relativistic quantum mechanics and causality
- GDogg
- · Replies 52 ·
Graduate Does destroying a detector before reading it affect wave-particle behavior?
- chris2112
- · Replies 1 ·
Undergrad Photoelectric effect experiment
- tonyza2006
- · Replies 3 ·
Graduate The projetive Hilbert space of coherent state.
- bobydbcn
- · Replies 2 ·
Graduate How are free fields and static fields in QFT interconnected?
- Lapidus
- · Replies 4 ·
Undergrad Schrodingers Cat is sbserved whilst in the box
- wawenspop
- · Replies 3 ·
Graduate Consecutive Measurements on One of an Entangled Pair
- Q-reeus
- · Replies 2 ·
Graduate New Type of Entanglement - Time
- Krombacher
- · Replies 16 ·
Graduate Electrons traversing a Potential well
- go quantum!
- · Replies 2 ·
Graduate Should QM or QED be used?
- Alfrez
- · Replies 18 ·
Graduate Understanding Convergence Factors in Physics Textbooks
- maverick_starstrider
- · Replies 5 ·
Graduate Understanding Cutkosky's Rules for Bhabha Scattering and the Optical Theorem
- ndung200790
- · Replies 1 ·
Undergrad Does a photon cease to exist when absorbed by an electron?
- SOP
- · Replies 3 ·
Undergrad What is the value, in joules, of one quantum of energy?
- JDude13
- · Replies 5 ·
Graduate Why is the behaviour at infinity important in classifying gauge theory states?
- ismaili
- · Replies 2 ·
Graduate Special Relativity and Entanglement
- thenewmans
- · Replies 52 ·
Graduate Interpreting the Heisenberg operator sandwich in bra-ket notation
- Hymne
- · Replies 1 ·
Graduate How Do Canonical Transformations Translate from Classical to Quantum Mechanics?
- tom.stoer
- · Replies 21 ·
Graduate Quantum Field is Observable, Not State Property
- Hurkyl
- · Replies 13 ·
Graduate What is the Relationship Between Quantum and Classical Path Integrals?
- sourena
- · Replies 2 ·
Graduate Understanding the Nambu-Jona-Lasinio Model: Key Questions and Concepts?
- paweld
- · Replies 3 ·
Graduate Is the Wave Packet a Valid Solution of the Schrödinger Equation?
- TrickyDicky
- · Replies 4 ·
Undergrad Why Do Units on Plank's Constant Include Mass, Length, and Time?
- nhmllr
- · Replies 1 ·
Graduate Searching Book about QED; compton scattering of polarized photons
- Ulf
- · Replies 2 ·
Graduate Correlations between QM operators
- RedX
- · Replies 5 ·
Graduate Italian double slit electron experiment
- DarioC
- · Replies 10 ·
Graduate Can Entangled Photons Enable Communication?
- TopiRinkinen
- · Replies 2 ·
Graduate What does e^(iS(x)/ℏ) represent in the Feynman path integral?
- Kevin_Axion
- · Replies 12 ·
Graduate Quantum computingnecessary classical devices knowledge?
- bifolco84
- · Replies 4 ·
Graduate Normalization and orthogonality of wavefunctions
- jessedupont
- · Replies 8 ·
Graduate Gravitrons and General Relaivity
- josephwouk
- · Replies 22 ·
Graduate Why must the energy interval exceed the Bohr frequency in Fermi's Golden Rule?
- Master J
- · Replies 6 ·
Graduate Microcausality in field theory
- RedX
- · Replies 3 ·
Graduate What IS happening with photon frequency?
- nhmllr
- · Replies 32 ·
Graduate Decoherence does not collapse wavefunc.
- ZPower
- · Replies 58 ·
Graduate What's Really so Quantum About Heisenberg's Uncertainty?
- maverick_starstrider
- · Replies 6 ·
Graduate Imagine a proton in a certain place during an experiment
- realamateur
- · Replies 2 ·
Graduate Atomic electron wave frequencies
- jaketodd
- · Replies 3 ·
Graduate Tensor products of representations
- math101
- · Replies 1 ·
Graduate Double slit experiment at event horizon of a BH
- upurg
- · Replies 13 ·
Graduate Does the delayed choice experiment require backwards causality?
- lmerriam
- · Replies 3 ·
Graduate How to calculate a Vibronic Coupling?
- mubashirmansoor
- · Replies 4 ·
Graduate Ask a few specific use of the word physical if it is correct
- xzjxu
- · Replies 1 ·
Graduate How to fire one electron at a time
- Four
- · Replies 3 ·
Graduate Density matrix theorem when one ensemble is normalized but not independent
- Nusc
- · Replies 1 ·
Graduate Do electrons exchange photons with all other electrons in electromagnetic repulsion?
- werunom
- · Replies 2 ·
Graduate Can S and K Integrate to the Same Result?
- maverick_starstrider
- · Replies 7 ·
Graduate Uncertainty in the presence of quantum memory
- msumm21
- · Replies 5 ·
Graduate Usefulness of the momentum wavefuction in solving Schrodinger's Equation
- piareround
- · Replies 4 ·
Graduate Are there any regulating condition on the spin of particle?
- ndung200790
- · Replies 5 ·
Graduate What are the possible dimensions of representation of SL(2,C)?
- paweld
- · Replies 4 ·
Graduate What would happen if Planck constant decreased slightly?
- zonde
- · Replies 2 ·
Graduate Can Quantum States be Transferred without Knowledge of Initial Orientation?
- Harmony
- · Replies 12 ·
Graduate Motion equation in quantum mechanics?
- ndung200790
- · Replies 5 ·
Graduate Finding probability density functions for hydrogen atom orbitals
- gaffareee
- · Replies 1 ·
Graduate Grassmann Numbers & Commutation Relations
- RedX
- · Replies 1 ·
Graduate Schrodinger Equation a constant?
- Miquelyn10
- · Replies 1 ·
Graduate Derive RMS around average of a hermitian operator
- fa2209
- · Replies 7 ·
Graduate Can Fields Be Custom-Designed to Control Charge Interactions?
- AdrianMay
- · Replies 4 ·
Graduate Propagator at time-like separations
- RedX
- · Replies 12 ·
Graduate Is there a guide to using the density matrix formalism in quantum mechanics?
- peterjaybee
- · Replies 2 ·
Graduate On the single/two-slit diffraction problem and superposition.
- Neo_Anderson
- · Replies 17 ·
Graduate Klein–Gordon equation with time dependent boundary conditions.
- Spinnor
- · Replies 10 ·
Graduate In the second quantization spin operator, what are Pauli spin vector indices?
- univox360
- · Replies 1 ·
Graduate Why does adding three spin-1/2 particles give only 6 eigenvectors?
- Nikratio
- · Replies 42 ·
Graduate How do complex numbers manifest themselves in the subatomic world?
- dionysos
- · Replies 1 ·
Graduate Wheeler's Delayed Choice Experiment
- Fuzzystuff
- · Replies 3 ·
Graduate How to Calculate Uncertainty of an Operator with Known State
- Vaal
- · Replies 3 ·
Graduate Field theory in non-relativistic QM
- Hymne
- · Replies 1 ·
Graduate Entropy in quantum mechanics and second law of thermodynamics
- tom.stoer
- · Replies 17 ·
Graduate Entangled photon polarization thought experiment disproof request
- Freeborn
- · Replies 6 ·
Graduate Properties quarks have that protons lack and vice-versa
- werunom
- · Replies 14 ·
Graduate Why is unitarity important in relativistic scattering processes?
- ndung200790
- · Replies 3 ·
Graduate How can sending a massive chunk of carbon through the double-slit prove
- Neo_Anderson
- · Replies 22 ·
Graduate Can Teleportation Become a Reality?
- TriKri
- · Replies 7 ·
Graduate Position operator in momentum space (and vice-versa)
- smiler2505
- · Replies 2 ·
Undergrad Why can we write this? (maths)
- atomqwerty
- · Replies 4 ·
Graduate How is a single photon fired in the double slit experiment?
- AJ_2010
- · Replies 2 ·
Graduate Why must Klein-Gordan equation describe spinless particles.
- kof9595995
- · Replies 17 ·
Graduate How to show gamma matrices are unique?
- kof9595995
- · Replies 4 ·
Graduate How Long Does a Photon Take to Pass Through a Thick Glass Block?
- Antiphon
- · Replies 14 ·
Graduate Bell inequality and 1-1 pairs in polarizer experiments
- dormouse
- · Replies 21 ·
Graduate Commutators in second quantization
- daudaudaudau
- · Replies 9 ·
Graduate Why is the Electron Self-Energy Important in QFT Theory?
- ndung200790
- · Replies 2 ·
Graduate Deriving c†ᵢcⱼ = δᵢⱼcⱼc†ᵢ for fermionic operators
- Niles
- · Replies 6 ·
Graduate Can an Electron Absorb a Photon Without Making a Complete Energy Level Jump?
- triac
- · Replies 1 ·
Graduate Coulomb's gap and Wave Equation
- raknath
- · Replies 2 ·
Graduate Electron Spin: 360 Degrees or 720? Understand the Difference
- deneve
- · Replies 8 ·
Undergrad Relationship between EMF and distance between the particles
- werunom
- · Replies 3 ·
Graduate Why does the Hamiltonian generate time evolution?
- Chopin
- · Replies 23 ·
Graduate Why wave model fails for photoelectric and Compton effects
- TrickyDicky
- · Replies 27 ·
Graduate Are electromagnetic forces observable between fractional charges?
- werunom
- · Replies 2 ·
Undergrad How does light reflect off a material surface?
- jeebs
- · Replies 10 ·
Graduate About the Schrodinger equation, the Hamiltonian, time evolution?
- jeebs
- · Replies 2 ·
Graduate Trace of momentum-space propagator
- RedX
- · Replies 4 ·