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 Useage of the term field in QFT
- kith
- · Replies 10 ·
Undergrad Me not falling through the ground and Pauli's Exclusion Principle
- Swimmingly!
- · Replies 6 ·
Graduate Quantum Physics from Classical Physics with an epistemic restriction
- yoda jedi
- · Replies 7 ·
Graduate How Do I Find the Energy of a Non-Hermitian Hamiltonian with Bosonic Operators?
- ozlemathph
- · Replies 2 ·
Graduate Is vacuum having any temperature.?
- aditya23456
- · Replies 3 ·
Graduate Linear combination of two solutions of the simplified schroedinger equation
- freddyfish
- · Replies 2 ·
Graduate Hermitian operators = values of variables
- arlesterc
- · Replies 1 ·
Graduate Energy transfer from photon to an electron - Compton vs Photoelectric
- kapitan90
- · Replies 4 ·
Graduate Deutsch and Hayden on locality
- martinbn
- · Replies 7 ·
Graduate Complex numbers from unitarity from information conservation?
- friend
- · Replies 4 ·
Graduate What are the eigenstates of quantum fields?
- Lapidus
- · Replies 16 ·
Graduate I have never seen a Grassmann Number
- the_pulp
- · Replies 6 ·
Graduate Can We Accurately Describe the Universe with One Giant Wave Function?
- PSarkar
- · Replies 17 ·
Graduate Energy/particle number uncertainty in a laser beam
- Sonderval
- · Replies 6 ·
Graduate Is probability a fundamental aspect of quantum mechanics?
- juzzy
- · Replies 76 ·
Graduate Some basic misunderstanding in Quantum Mechanics
- junhui.liao
- · Replies 2 ·
Graduate Gluon Scattering - Colored Feynman Rules for Yang Mills Theory
- maverick280857
- · Replies 2 ·
Graduate Can a electron be stationary.?
- aditya23456
- · Replies 2 ·
Graduate Why can information not be transmitted via phase velocity?
- San K
- · Replies 3 ·
Undergrad Probability density versus radial distribution function
- ishchayill
- · Replies 12 ·
Graduate Superconductivity by quantum tunneling?
- Stanley514
- · Replies 3 ·
Graduate Sign Convention For Momentum Operators
- Septim
- · Replies 4 ·
Graduate Will this anology for zero-point energy work?
- Ger
- · Replies 1 ·
Graduate What's the color of Hawking radiation?
- Warp
- · Replies 2 ·
Graduate Why is the center of mass energy linked to the parameter \mu?
- physicus
- · Replies 1 ·
Graduate Double slit experiment at home
- shantanu_l
- · Replies 2 ·
Graduate Mathematical Foundations of the Relativistic Theory of Quantum Gravity
- AlexKid
- · Replies 6 ·
Graduate Question: Early history of QM
- patrickd
- · Replies 3 ·
Graduate Does Hamilton's principle follow from the Feynman formulation of QM?
- Jano L.
- · Replies 2 ·
Graduate Phase operator in quantum optics
- kith
- · Replies 2 ·
Graduate How would this universe be if there's NO UNCERTAINITY PRINCIPLE
- aditya23456
- · Replies 29 ·
Graduate A followup to my previous question
- Fiziqs
- · Replies 4 ·
Graduate Particles & Size: Matter Structure & Wave Function
- alvarogz
- · Replies 3 ·
Graduate Double Slit Experiment and Quantum Eraser
- DylanLou
- · Replies 55 ·
Graduate Hiesenberg uncertainty principle, h or hbar?
- rash92
- · Replies 3 ·
Graduate How to evaluate the commutator of direct product?
- PRB147
- · Replies 1 ·
Graduate Complicated, or just tricky, modern physics problem
- UltrusViderat
- · Replies 1 ·
Undergrad Why are some materials transparent?
- center o bass
- · Replies 3 ·
Graduate Difference between classical wave function and quantum wave function
- Casco
- · Replies 12 ·
Graduate Infrared spectroscopy and symmetry
- Chemist20
- · Replies 1 ·
Graduate Why is the spin in a mirror image opposite?
- nonequilibrium
- · Replies 9 ·
Graduate Why doesn't the energy come out right in the Dirac Equation?
- Xezlec
- · Replies 4 ·
Graduate Casimir Effect within a Circular Topography
- chords
- · Replies 1 ·
Graduate Understanding the Von Neumann Chain Concept in Modern Quantum Theory
- Varon
- · Replies 2 ·
Undergrad A free electron in a total vacuum
- Bastian74
- · Replies 2 ·
Graduate Question about the Mach-Zehnder experiment
- naffin
- · Replies 5 ·
Graduate Number of photons in a mode (in a blackbody)
- dydxforsn
- · Replies 1 ·
Graduate Understanding loopholes: what are the loopholes in entanglement swapping?
- San K
- · Replies 11 ·
Graduate Lorentz transform of a scalar in QM
- geoduck
- · Replies 2 ·
Graduate Understanding the Lagrangian Density Dependence on Field Variables
- bigbigtheory
- · Replies 3 ·
Graduate Weak interactions: I know why they're weak, but why are they slow?
- nonequilibrium
- · Replies 3 ·
Graduate Square shape wave packet spreading
- youngurlee
- · Replies 3 ·
Graduate Different between L^2 and L in Hydrogen atom
- chunhui219
- · Replies 1 ·
Graduate Applications of Invariant Theory to Quantum Physics
- timb00
- · Replies 1 ·
Graduate Variation Method for Higher Energy States
- aim1732
- · Replies 2 ·
Graduate Understanding Planck's Blackbody Law: A Comprehensive Guide
- robertjford80
- · Replies 2 ·
Graduate Fine structure constant and energy scale
- asimov42
- · Replies 4 ·
Graduate Inelastic Tunneling Current Equation help
- Huor Earfalas
- · Replies 1 ·
Graduate The electric dipole approximation
- spaghetti3451
- · Replies 2 ·
Undergrad Energy Emission: Electrons vs Protons
- scientifico
- · Replies 3 ·
Undergrad Is the number of cycles in a wave related to the uncertainty in the wavelength?
- Infrasound
- · Replies 2 ·
Graduate Early annihilation of antimatter
- Jared409
- · Replies 2 ·
Graduate On the use of Hilbert Spaces to represent states
- the_pulp
- · Replies 55 ·
Undergrad Does a white shirt weight more
- ahuberpsu
- · Replies 2 ·
Graduate Can The Free Electrons Be Polarized?
- wantommy
- · Replies 5 ·
Graduate The mechanics of calculating Reduced Density Matrices
- QITStudent
- · Replies 1 ·
Graduate Entanglement in QFT: Free Particle Decay
- LarryS
- · Replies 1 ·
Graduate QED Explanation of Force Between Motionless Particles
- jjustinn
- · Replies 2 ·
Graduate Transformation of observables by permutation
- buttolo
- · Replies 3 ·
Graduate How photon is force carrier of electromagnetic force in macroscopic level.?
- aditya23456
- · Replies 4 ·
Graduate Why is heisenberg uncertainty not a limit of technology?
- danphan323
- · Replies 38 ·
Graduate Hydrogen Atom in Uniform Electric Field
- Frank0
- · Replies 2 ·
Graduate Instant communication with a modified ZWM apparatus?
- al onestone
- · Replies 13 ·
Graduate Redundancy of Virtual Particles Borrowing Energy
- e2m2a
- · Replies 17 ·
Graduate QFT w/ Negative Mass: Spin 0 vs Spin 1/2
- nonequilibrium
- · Replies 3 ·
Graduate What branch of mathematics to study to understand Quantum Mechanics?
- Buzzworks
- · Replies 11 ·
Graduate Comparing Dirac and Schrodinger Equations for the Hydrogen Atom
- foobar
- · Replies 37 ·
Graduate A particle in a 2d circle with potential
- Bokul
- · Replies 2 ·
Unstuck From Multiple Realities: Find Your Original Time Line
- Raavenous
- · Replies 2 ·
Graduate What types of particles have a higher probability of tunnelling?
- idea2000
- · Replies 1 ·
Graduate Entanglement, Entropy and Energy
- kirk1729
- · Replies 1 ·
Graduate Single Electron D-slit Interference Experiment
- Xverse
- · Replies 3 ·
Graduate Rigorous Quantum Mechanics text or online
- danjordan
- · Replies 16 ·
Graduate Understanding Electron Volts, Temperature & Boltzmann's Constant
- brydustin
- · Replies 1 ·
Graduate Square of a hermitian operator in matrix form
- Arijun
- · Replies 3 ·
Graduate Spin of a quickly moving electron
- Adam Lewis
- · Replies 1 ·
Graduate Understanding GR vs QM: Contradiction in Neil de Grasse Tyson's Explanation
- robertjford80
- · Replies 12 ·
Graduate Whats potential energy of a electron left in free space outside atom.?
- aditya23456
- · Replies 7 ·
Graduate Quantum linking daughter particles from a fission
- beanangel300
- · Replies 1 ·
Graduate From Metric Spaces to Linear Spaces
- the_pulp
- · Replies 13 ·
Graduate Complex Amplitude: Physical Meaning & Significance
- MadRocketSci2
- · Replies 1 ·
Graduate What is the effect of e^(isH)? p.77, Ballentine
- syhpehtam
- · Replies 11 ·
Graduate Kinetic Energy in Classical treatment of Larmor Precession
- aim1732
- · Replies 1 ·
Graduate Quantum Computers, how do they work?
- Max Born
- · Replies 4 ·
Graduate Quantum gravity and Casimir effect
- AlSo
- · Replies 3 ·
Graduate Is the S-matrix in Weinberg's book always unitary?
- eoghan
- · Replies 2 ·
Graduate Why does dbb need to assume pilot wave?
- San K
- · Replies 12 ·
Graduate EM wave function & photon state vector.
- kof9595995
- · Replies 6 ·
Graduate The Schrödinger equation as the non-relativistic limit of the Dirac equation
- nonequilibrium
- · Replies 5 ·
Graduate Energy of e.m waves in a cavity
- Soph_the_Oaf
- · Replies 1 ·