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 Need Help Understanding Misner Space Terminology
- Quantum Copy
- · Replies 1 ·
Graduate Does observer effect explain the Heisenberg uncertainty principle?
- mahela007
- · Replies 5 ·
Graduate Why doesn't the electron have a definite position?
- mahela007
- · Replies 8 ·
Graduate Matter Waves: What Does Frequency Represent?
- snoopies622
- · Replies 4 ·
Graduate Dirac conserved current vs Klein-Gordon conserved current
- pellman
- · Replies 14 ·
Graduate Can the Pendulum of Time Model Explain Double-Slit Experiment Results?
- Somerschool
- · Replies 2 ·
Graduate Why does a negative perturbation energy shift indicate an attractive force?
- Niles
- · Replies 2 ·
Graduate Metric and Covariant Derivative
- TriTertButoxy
- · Replies 2 ·
Graduate Azimuthal quantum number,l and magnetic quantum number, m
- JayKo
- · Replies 3 ·
Graduate Formula for Amplitude of a Photon
- penguin007
- · Replies 9 ·
Graduate Qutrit Teleportation: Understand How it Works with Nielson and Chuang
- damo642
- · Replies 2 ·
Graduate Can Isolation Turn You Into a Wave Function?
- Wangf
- · Replies 1 ·
Graduate Can We Construct a Detector for Precise Arrival Time of Monochromatic Photons?
- LarryS
- · Replies 9 ·
Graduate Textbooks on variational calculus path from Newtonian to quantum mechanics
- aliaze1
- · Replies 3 ·
Graduate How is entanglement not weird ?
- fereopk
- · Replies 26 ·
Undergrad How does a photon interact with a mirror?
- worwhite
- · Replies 31 ·
Graduate Does the Uncertainty Principle Suggest a Predetermined Universe?
- mikesaxon4
- · Replies 6 ·
Graduate Photon absorption and probability of atomic electron transition
- PhysicsAm55
- · Replies 3 ·
Graduate Are photons absorbed when two photons create matter?
- NJV
- · Replies 7 ·
Graduate Varying mass in Schrodinger Equation
- hermitian
- · Replies 1 ·
Graduate Is Quantum Measurement Uncertainty Due to Methods or the Act of Observation?
- mechaxl
- · Replies 9 ·
Graduate Ensuring Clean Quantum Measurements in the Stern-Gerlach Experiment
- sokrates
- · Replies 31 ·
Graduate Quantum corrections to force laws
- RedX
- · Replies 3 ·
Graduate Dirac Equation Derivation with Inhomogeneous Lorentz Group in QFT Book
- nklohit
- · Replies 4 ·
Graduate Alternate formulation of Dirac Notation
- IttyBittyBit
- · Replies 1 ·
Graduate Srednicki Path Integrals eq 6.22
- maverick280857
- · Replies 6 ·
Graduate What is the essence of quantization?
- massless
- · Replies 3 ·
Undergrad Bohr's Quantization of Angular Momentum
- msavg
- · Replies 2 ·
Graduate Quantum uncertainty on macroscopic scale
- litewave
- · Replies 2 ·
Undergrad Electron Transition: Why Doesn't Excited Electron Absorb Extra Photon?
- alamdar
- · Replies 4 ·
Graduate Can a particle in an infinite square well be in a momentum eigenstate?
- quasar_4
- · Replies 3 ·
Graduate Can Quantum Mechanics Explain the Paradox in Modified EPR Experiments?
- zonde
- · Replies 14 ·
High School Why is light polarized by reflection at a particular angle?
- Fadi A.Saif
- · Replies 1 ·
Graduate Bundle of energy, but does it have mass?
- myrhinobutt2
- · Replies 1 ·
Graduate Dirac delta function is continuous and differential
- astro2cosmos
- · Replies 4 ·
High School Which laser power works for Young's double slit experiment photography?
- Cmertin
- · Replies 5 ·
Graduate Momentum conservation in the photoelectric effect
- SergioPL
- · Replies 23 ·
Graduate About an (informal, discussion-oriented) Quantum Physics model
- snnmbr
- · Replies 2 ·
Graduate Why do quantum mechanics textbooks require Hilbert space formalism?
- luisgml_2000
- · Replies 4 ·
Graduate Rayleigh scattering vs Compton scattering and Dirac sea infinities
- kof9595995
- · Replies 6 ·
Graduate Quantum Measurements and Macroscopic Objects
- Jimmy84
- · Replies 7 ·
Graduate Nuclear magnetic resonance dipole dipole interaction
- xfshi2000
- · Replies 1 ·
Graduate Is the wavefunction physical or epistemic?
- madness
- · Replies 5 ·
Graduate Derived form of plancks distance
- bpm_vns19
- · Replies 1 ·
Graduate Pion Nucleon Scattering and Group Theory in Quantum Field Theory
- Physiana
- · Replies 2 ·
Graduate String tension contradiction in Srednicki equation 82.37
- RedX
- · Replies 7 ·
Graduate Wick rotation is consistent with caculus?
- PRB147
- · Replies 5 ·
Graduate What causes wave function collapse upon observation?
- elfmotat
- · Replies 38 ·
Graduate How Does Bifurcation in Dynamical Systems Influence Information Generation?
- Gargamel
- · Replies 1 ·
Graduate If a system is made of 3 atoms with no degeneracy with energy levels
- iontail
- · Replies 4 ·
Graduate Solving the Measurement Problem: Imagine Yourself in a Room
- hagopbul
- · Replies 8 ·
Graduate Can quantum mechanics and special relativity both be compatible with locality?
- DrChinese
- · Replies 3 ·
Graduate Reconstruction of potential V(x)
- zetafunction
- · Replies 1 ·
Graduate Self-Adjoint Operators and Reversible Logic gates
- karatemonkey
- · Replies 6 ·
Graduate About Feynman's 'QED:The strange theory of light and matter'
- penguin007
- · Replies 9 ·
Graduate Did Scientists Prove Current Measurements Change the Past?
- Wangf
- · Replies 8 ·
Graduate What is unpolarized current and how does it get polarized?
- sokrates
- · Replies 10 ·
Graduate I think I have good questions About superposition and splitting
- Wangf
- · Replies 19 ·
Graduate Negative energy photon emission
- tickle_monste
- · Replies 8 ·
Graduate How Can Degenerate Perturbation Theory Help Identify Zero Order Eigenstates?
- hermitian
- · Replies 5 ·
Graduate Does superposition mean an object vibrates faster than light?
- Greg_Jones
- · Replies 1 ·
Graduate Reality, locality and determinacy.
- alexepascual
- · Replies 16 ·
Graduate What is the relationship between quantum bits and classical measurements?
- Red_CCF
- · Replies 27 ·
Graduate Tim Palmer's Invariant Set Postulate as geometric quantum theory
- Baboon
- · Replies 3 ·
Graduate Photons do not travel in straight lines
- tickle_monste
- · Replies 40 ·
Graduate Transition from QFT to Classical Physics using Path Integrals?
- RedX
- · Replies 2 ·
Graduate Entropy and the Uncertainty Principle
- IttyBittyBit
- · Replies 7 ·
Graduate References on Euclideanizing actions and Wick rotation in field theory
- TriTertButoxy
- · Replies 1 ·
Normalising phi for the hydrogen atom
- mrausum
- · Replies 2 ·
Graduate Problem with Path Integral Expressions in Peskin And Schroeder Section 9.1
- maverick280857
- · Replies 4 ·
Graduate One atom in space what happens
- Quantom
- · Replies 2 ·
Graduate Why is the ground state of the Heisenberg Hamiltonian a superposition?
- Skatch
- · Replies 2 ·
Graduate Is the Classical Limit of Quantum Field Theory a Valid Inquiry?
- maverick280857
- · Replies 3 ·
Graduate Why is Rabi frequency important in physics?
- KFC
- · Replies 4 ·
Graduate How does the interaction between two quantum systems form entanglement?
- alexepascual
- · Replies 3 ·
Graduate Synchronizing n samplers to sample at 1/n Planck time
- Hippasos
- · Replies 3 ·
Graduate What is the Weyl symbol and its relation to the propagator in QFT?
- maverick280857
- · Replies 4 ·
Graduate Pauli's exclusion principle and cooper pairs
- noblegas
- · Replies 7 ·
Graduate Do atoms achieve perpetual motion through quantum leaping?
- Kryptech
- · Replies 3 ·
Graduate Does particle interaction take time?
- wilco97531
- · Replies 7 ·
Graduate Quantum Cosmology - Imaginary Time
- putongren
- · Replies 1 ·
Graduate Does quantum theory render the null hypothesis obsolete?
- Hippasos
- · Replies 3 ·
Graduate Path Integral Propagator Normalization in Lewis Ryder's QFT book
- maverick280857
- · Replies 9 ·
Graduate Photoelectric and Compton Effects
- Red_CCF
- · Replies 6 ·
Graduate What Are the Forbidden Regions in Finite Square Wells?
- Mike89
- · Replies 2 ·
Graduate Is the Born Approximation in Cohen-Tannoudji vol 2 textbook accurate?
- MathematicalPhysicist
- · Replies 1 ·
Graduate What's the total angular momentum operator for a system of two particles?
- AxiomOfChoice
- · Replies 1 ·
Graduate Photon wavelength quantization?
- espen180
- · Replies 2 ·
Undergrad Where do electromagnetic waves not penetrate through holes?
- Edi
- · Replies 8 ·
Graduate Can Bethe Ansatz Solve Multiple Fermionic Particles in a 1D Infinite Well?
- xlines
- · Replies 1 ·
Graduate Understanding Spin Density Matrix Invariance
- baru
- · Replies 1 ·
Graduate What do you think these Weak Measurement, Quantum Uncollapse Tests. Re-write QM?
- Wangf
- · Replies 29 ·
Graduate Can a Quantum Mechanic Fix Your Physics Problems?
- kldickson
- · Replies 5 ·
Graduate Time and Space Theory (pleas critic and give your ideas)
- Raakam
- · Replies 1 ·
High School Seeking Point Particle Explanation
- AndyDufresne
- · Replies 29 ·
Graduate Fermions in bound states and their wavefunctions
- ZombieCat
- · Replies 3 ·
Graduate Hilbert space dimension contradiction
- adjklx
- · Replies 23 ·
Graduate What preliminary knowledge of QM should I know before learning QFT
- MathematicalPhysicist
- · Replies 8 ·
Graduate Invariance of Schrödinger's equation
- tommy01
- · Replies 3 ·
Graduate What is the significance of the LSZ reduction formula in Srednicki's QFT book?
- haushofer
- · Replies 9 ·