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 Double slit experiment - no interference in the vicinity of light
- sryzdn
- · Replies 2 ·
Graduate Fermionic Number Operator Help
- pleasehelpmeno
- · Replies 19 ·
Graduate Normalizing a wave function - how the integration is done?
- 71GA
- · Replies 7 ·
Graduate Best way to solve Schrodinger's wave equation numerically.
- Slide rule
- · Replies 4 ·
Graduate Terms in the Yang-Mills Lagrangian
- dm4b
- · Replies 17 ·
High School Helo, I am just wondering about some info I foind on the web.
- duskwood100
- · Replies 7 ·
Undergrad Understanding SHM: Calculating the Wave Function of a Simple Harmonic Wave
- Saxby
- · Replies 4 ·
Graduate Finding the Eigen Value of A.σ Vector Product
- rupesh57272
- · Replies 6 ·
Graduate Is this a good definition of entanglement
- g.lemaitre
- · Replies 3 ·
Graduate Can someone give me some examples on the schrodinger equation?
- Ayham
- · Replies 1 ·
Graduate What is the difference between a wave of water and qm wave?
- g.lemaitre
- · Replies 4 ·
Graduate Question about potential well schrodinger
- ChaseRLewis
- · Replies 4 ·
Graduate Do angular momentum operators anti-commute?
- Demon117
- · Replies 1 ·
Graduate Couple of quantum fluctuation related questions from a curious layman
- danihel
- · Replies 1 ·
Graduate Minimal Subsitution from Lorentz Invariance
- Sekonda
- · Replies 1 ·
Graduate Why are there multiple Slater determinants for the same number of electrons?
- aaaa202
- · Replies 10 ·
Graduate Dirac Equation: Gamma Matrices as 4-Vector Components?
- vijaychitgopka
- · Replies 2 ·
Graduate Spin-orbit coupling for s-orbital states
- htkhs
- · Replies 9 ·
Graduate Can Measuring One Spin Disentangle Electrons?
- LarryS
- · Replies 14 ·
Graduate What is the physical meaning of [H,ρ ]=0 for a stationary state?
- jiadong
- · Replies 6 ·
Graduate What is the concept behind the Uncertainty Principle?
- quicksilver123
- · Replies 5 ·
Graduate Is this the HUP or diffraction?
- mrspeedybob
- · Replies 1 ·
Undergrad P-subshell orbital of Hydrogen
- cadamcross2
- · Replies 7 ·
Graduate Why are only some photons virtual?
- Mukilab
- · Replies 3 ·
Graduate Entanglement happens at what speed?
- boffinwannabe
- · Replies 4 ·
Graduate Born Rule Derivation: A Closer Look
- 71GA
- · Replies 2 ·
Graduate Virtual particles vs. real particles
- PerpStudent
- · Replies 12 ·
Graduate How Do Photons Mediate Attraction Between Oppositely Charged Particles?
- Lazernugget
- · Replies 1 ·
Undergrad Photoelectric effect - Frequency vs. Current
- jaumzaum
- · Replies 6 ·
Graduate Diagonal Matrix & Perturbation Theory in Quantum Mechanics
- M. next
- · Replies 3 ·
Graduate Planck's Derivation of Quantization: Summation vs Integrand
- ENDLESSYOU
- · Replies 2 ·
Graduate Variational Method vs Inverse Rayleigh Method with Shifting
- HasuChObe
- · Replies 1 ·
Graduate Is Bell's theorem near-sighted?
- spenserf
- · Replies 20 ·
Graduate Is This the Correct Method for Quantizing the Scalar Field?
- pleasehelpmeno
- · Replies 1 ·
Graduate Peskin & Schroeder QFT Born Approximation reference.
- center o bass
- · Replies 6 ·
Graduate Understanding the Bethe-Salpeter Equation: Introduction and Examples
- EuphoGuy
- · Replies 8 ·
Graduate Separating operators into classical + quantum
- DrClaude
- · Replies 3 ·
Undergrad Radiation absorption by an atom
- jaumzaum
- · Replies 4 ·
Graduate Has the double slit experiment been conducted without a detector?
- b1ll
- · Replies 2 ·
Graduate Question about a quantum field.
- cragar
- · Replies 24 ·
Graduate Photons violate Uncertainty Principle?
- sarvesh0303
- · Replies 2 ·
Graduate Formal integration of Heissenberg equation?
- climbon
- · Replies 2 ·
Graduate HUB & accurate single measurement
- MHD93
- · Replies 6 ·
Undergrad Chaos Theory and Schrodinger's Cat: A Quirky Connection
- rsaad
- · Replies 2 ·
Graduate Lorentz action on creation/annihilation operators
- jackson1
- · Replies 12 ·
Graduate Can bodies be made to radiate at one freq.
- philrainey
- · Replies 6 ·
Graduate Ehrenfest theorem for kinetic energy
- cartatum
- · Replies 6 ·
Graduate Joy Christian, Disproof of Bell's Theorem
- bcrowell
- · Replies 253 ·
Graduate Renormalized vertex always a log?
- geoduck
- · Replies 3 ·
Graduate What is the condition for one-dimensional motion in an infinite potential well?
- matematikuvol
- · Replies 13 ·
Graduate How does quantum mechanics define time
- Chemist@
- · Replies 5 ·
Graduate Understanding Spin in Composite Systems
- aaaa202
- · Replies 1 ·
Graduate Can an electron absorb multiple photons at once?
- big_bounce
- · Replies 8 ·
Graduate What contributes to proton mass besides quark mass?
- big_bounce
- · Replies 12 ·
Graduate What Are Meta-Stable States in Atoms and Their Role in Lasing Action?
- moatasim23
- · Replies 1 ·
Graduate Probability Density and Current of Dirac Equation
- Sekonda
- · Replies 8 ·
Undergrad How does an EM wave affect an atom's energy levels?
- moatasim23
- · Replies 1 ·
Graduate Can Aufbau and Hund's Rule explain electron filling after EC?
- Notgiven
- · Replies 1 ·
Graduate Is Pilot Wave Theory in Conflict with the Original Matter Wave Theory?
- phyky
- · Replies 1 ·
Graduate Feynman’s path integral and an electron in a Penning trap
- ajw1
- · Replies 3 ·
Graduate Evidence of single photon absorption?
- IxRxPhysicist
- · Replies 16 ·
Undergrad Can the Movement of Atomic Parts Be Measured in Time?
- 0day
- · Replies 5 ·
Graduate How do I solve the Schrodinger wave equation with a differential equation?
- vmercel
- · Replies 1 ·
Graduate Significance of Order in Feynman Diagrams
- Demon117
- · Replies 2 ·
Graduate Quantum entanglement and the uncertainty principle
- PhysicsDad
- · Replies 1 ·
Graduate Implications of Heisenberg uncertainty principle
- pleasehelpmeno
- · Replies 2 ·
Graduate Regularization scheme independence?
- geoduck
- · Replies 5 ·
Graduate How do wave-functions deal with energy (of the photon)?
- San K
- · Replies 6 ·
Graduate Rigged Hilbert space, separable space, domain of CSCO, mapping
- Petro z sela
- · Replies 29 ·
Graduate Publication: perpetuum mobile of fourth type
- rositiv
- · Replies 1 ·
Graduate How does this formula relate to particle creation?
- AbsoluteZer0
- · Replies 2 ·
Graduate Composite system, rigged Hilbert space, bounded unbounded operator, CSCO, domain
- Petro z sela
- · Replies 3 ·
Graduate Imposing Klein-Gordon on Dirac Equation
- Sekonda
- · Replies 3 ·
Graduate What does a quantum state represent in quantum theory?
- jaumzaum
- · Replies 23 ·
Graduate How a particle tells time (Holger Mueller et al in *Science*)
- marcus
- · Replies 4 ·
Graduate Biological photonics: Can there be light in the brain?
- JohnRood
- · Replies 9 ·
Graduate Understanding the Derivation of the Dirac Equation in Cosmology
- pleasehelpmeno
- · Replies 2 ·
Undergrad A problem about blackbody radiation
- VHAHAHA
- · Replies 3 ·
Undergrad Atomic excitation and electron orbits
- cooper607
- · Replies 1 ·
Graduate Rigorous definitions in quantum mechanics
- Nana Dutchou
- · Replies 7 ·
Graduate Feynman Lectures Volume 3 Equation 9.41
- vappole
- · Replies 3 ·
Undergrad About photoelectric effect and work function
- VHAHAHA
- · Replies 3 ·
Graduate What is Quantum State? - Understanding the Basics
- shounakbhatta
- · Replies 24 ·
Graduate Wavelength associated with the body - What does it mean?
- jaumzaum
- · Replies 2 ·
Graduate Why Do Fermions Have +1/2 and -1/2 Spin?
- shounakbhatta
- · Replies 8 ·
Graduate Double Slit Quantum Eraser, Really?
- i8uncertainty
- · Replies 14 ·
Graduate Has Anybody Ever Tried to Build a Build an Brownian Ratchet?
- James Brady
- · Replies 2 ·
Graduate Are there any physical implications of working with unbounded operators in QM?
- micromass
- · Replies 3 ·
Graduate Trying to Derive Dirac's equation following Dirac
- GravitatisVis
- · Replies 4 ·
Graduate What is the meaning of uncertainty principle in QTF?
- ndung200790
- · Replies 19 ·
Graduate TISE in the position representation- basic question
- Lucy Yeats
- · Replies 5 ·
Graduate Correct understanding of symmetrization requirement?
- dracobook
- · Replies 5 ·
Graduate Rotation Operator: Spin 1/2 vs Spin 1
- M. next
- · Replies 7 ·
Graduate Sound in Bose Einstein Condensates.
- o0_manifold_0o
- · Replies 8 ·
Graduate Can an Electron Have Zero Kinetic Energy in a Confined Space?
- wudingbin
- · Replies 6 ·
Undergrad Why are the entries in the matrix arranged the way they are?
- M. next
- · Replies 4 ·
Graduate What is the meaning of differential cross section in scattering theory?
- Kontilera
- · Replies 4 ·
Undergrad Equipment required to to the electron double slit experiment ?
- laudas
- · Replies 3 ·
Graduate Excite Photon: Can It Be Done?
- fouad89
- · Replies 36 ·
Graduate How Do Coherence and Entanglement Affect Photon Interference?
- San K
- · Replies 1 ·