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 Why use Gray codes to implement two-level unitary operations
- jimmycricket
- · Replies 2 ·
Graduate How does EPR rule out predetermined opposite spins in entangled particles?
- underworld
- · Replies 4 ·
Graduate Deriving Massive spin 2 propagator from polarization vectors
- BradC
- · Replies 5 ·
Graduate Gauge Freedom Quantum Electrodynamics
- Juan Carlos
- · Replies 8 ·
Graduate Can virtual particles become real particles in experiments?
- Gerinski
- · Replies 171 ·
Graduate David Tong: Lectures on Quantum Field Theory
- craigi
- · Replies 1 ·
Graduate Construction of the path integral
- aaaa202
- · Replies 5 ·
Graduate When are quantum corrections significant for EM?
- itssilva
- · Replies 6 ·
Graduate Is it Possible to Transmit Classical Information with Quantum Network Flow?
- Strilanc
- · Replies 4 ·
Graduate How to directly calculate the polarizability
- sandf
- · Replies 4 ·
Graduate Energy of a particle near a potential well
- Urmi Roy
- · Replies 2 ·
Graduate Nuclear Spin and Magnetic Resonance Imaging
- Jimmy87
- · Replies 1 ·
Undergrad What does this quote from Einstein mean?
- adoion
- · Replies 6 ·
Graduate Creation and annihilation as measuring processes?
- itssilva
- · Replies 16 ·
Graduate Touching at atomic and macro scale
- Rajkovic
- · Replies 10 ·
Graduate Is there a connection between EPR and crossing symmetry in Feynman diagrams?
- stevendaryl
- · Replies 1 ·
Graduate Uncertainty of position in an infinite potential well
- Ananthan9470
- · Replies 3 ·
Graduate Quantum Physics: The Reaction of a Photon Passing Through a Slit in a Plate
- goran d
- · Replies 2 ·
Graduate Quantum fluctuations at radio frequencies
- Ponderer
- · Replies 54 ·
High School Is the Net Charge of a Hydrogen Atom the Same in Excited State vs Ground State?
- jimmylegss
- · Replies 1 ·
Graduate Is the Mass of an Electron Arbitrary in Quantum Field Theory?
- Student57
- · Replies 1 ·
Graduate Implications of Bell's theorem (Laloe paper)
- atyy
- · Replies 20 ·
Graduate Apparent 'stillness' of macroscopic systems
- Oudeis Eimi
- · Replies 9 ·
Undergrad What is the charge of an electron and the nature of stopping potential?
- blooperkin
- · Replies 3 ·
Graduate Relation between electricity and magnetism?
- akashpandey
- · Replies 2 ·
Graduate Quantum fluctuations at critical point
- AcidRainLiTE
- · Replies 5 ·
Graduate Selection rules in electric dipole appoximation
- blue_leaf77
- · Replies 5 ·
Graduate How Do Eigenvalues and Eigenvectors Determine a Quantum Density Operator?
- andphy
- · Replies 13 ·
Graduate Is Matter Wave Travel Faster Than the Speed of Light?
- akashpandey
- · Replies 4 ·
Graduate Proof of Cauchy-Schwarty Inequality
- Peter Yu
- · Replies 6 ·
Graduate Strength of Dirac Delta Potential
- dyn
- · Replies 3 ·
Graduate Electron recoil due to photon emission
- Danyon
- · Replies 15 ·
Graduate Spin angular momentum operator queries
- gfd43tg
- · Replies 4 ·
Graduate Does frustrated total internal reflection allow superluminal signaling?
- kochanskij
- · Replies 3 ·
Graduate What are energy eigenstates: orbitals, energy bands, or kinetic and potential components?
- lucas_
- · Replies 5 ·
Graduate Basic Linear Alegbra for Quantum Mechanics
- Peter Yu
- · Replies 4 ·
Graduate What happens when you vary slit shapes and spacing in double slit experiments?
- PZIG98
- · Replies 8 ·
Graduate Noether's theoem and conserved current arbitrariness
- Einj
- · Replies 3 ·
Graduate Huh? Condensates can exchange particles without effect?
- jshrager
- · Replies 2 ·
Graduate Solving the Schödinger equation - R.Shankar's PQM, mistake?
- soviet1100
- · Replies 10 ·
Graduate What causes spontaneous emission from an excited state?
- Goodver
- · Replies 3 ·
Undergrad Why photons don't interact with the Higg's field
- Evenus1
- · Replies 1 ·
Graduate Is the quantum world truly random?
- Chuckstabler
- · Replies 14 ·
Graduate The "Intelligence" behind quantum physics
- Felipe Osorio
- · Replies 3 ·
Graduate Gauge Transformation Quantum Electrodynamics
- Juan Carlos
- · Replies 1 ·
Graduate Can you answer this virtual photon paradox?
- nuclearhead
- · Replies 13 ·
Graduate Is Quantum Superposition Dependent on the Observer?
- underworld
- · Replies 21 ·
Graduate Logical explanation for quantization
- physdoc
- · Replies 12 ·
Graduate Representations on Hilbert space
- Jip
- · Replies 8 ·
Graduate Are translation operators related to raising and lowering operators?
- dyn
- · Replies 14 ·
Graduate Why do scars corresponding to classical orbits appear in the wavefunction?
- Rococo
- · Replies 5 ·
Graduate Why does <n|a†a|n> equal C² not <n+1|DC|n-1>?
- TimeRip496
- · Replies 1 ·
Graduate Double-slit experiment: videos of detecting which slit
- Iron Chef
- · Replies 21 ·
Graduate V - A weak interaction theory?
- haael
- · Replies 1 ·
Graduate What happens at energy-gaps, Kronig-Penney model
- iAlexN
- · Replies 1 ·
Graduate Mass problem or something of a sort (E=mc^2)
- Nikola Kolev
- · Replies 2 ·
Graduate Bogoliubov coefficients for Minkowski and Rindler modes using KG inner product
- Joey21
- · Replies 5 ·
Graduate Dirac Wave Function: Schrodinger Equation Coupling
- jamie.j1989
- · Replies 7 ·
Graduate Quantum Bose Einstein effects on a macro scale?
- maboomba
- · Replies 15 ·
Graduate Introduction to superconducting quantum circuits
- lfqm
- · Replies 2 ·
Graduate Why does the path integral use multiple integrals to sum over paths?
- TimeRip496
- · Replies 14 ·
Graduate Visualising the Conjugate Transposition of a Vector
- H Smith 94
- · Replies 5 ·
Graduate Effects of Hamiltonian Preferred Basis on Decoherence
- lucas_
- · Replies 1 ·
Graduate Definition Radial distribution function
- Pluto
- · Replies 2 ·
Graduate Quantum Superposition: Causes, Effects and More
- TimeRip496
- · Replies 3 ·
Graduate Entanglement, Measurements, and Interactions
- JasonWuzHear
- · Replies 1 ·
Graduate Explain delayed choice quantum eraser without consciousness
- burke142
- · Replies 2 ·
Graduate Why is the integrated information of a Bell state = 0?
- Agrippa
- · Replies 3 ·
Graduate Can Wien's Law be derived without using Planck's formula?
- Math Jeans
- · Replies 2 ·
Graduate Can we determine momentum and position from particle trajectory photographs?
- Praveen Vijayan
- · Replies 10 ·
Graduate A concept of time with the future as an emergent property
- Rodrigo Cesar
- · Replies 7 ·
Graduate If there are three electrons associated together then how
- invrlovduanyway
- · Replies 2 ·
Graduate Mass in eV over speed of light
- Avatrin
- · Replies 6 ·
Graduate How Are Hamiltonian and Lagrangian Related in Quantum Mechanics?
- TimeRip496
- · Replies 3 ·
Graduate Entangled particle through double slit
- whoperj
- · Replies 5 ·
Graduate Splitting Gamma-Ray Photons: Is It Possible?
- ryanuser
- · Replies 2 ·
Graduate Quantized Spacetime and Zeno's Paradox: A Solution to the Arrow Paradox?
- Rodrigo Cesar
- · Replies 2 ·
Graduate If electrons are fundamental particles then why do they -
- invrlovduanyway
- · Replies 3 ·
Graduate Harmonic oscillator in Heisenberg picture
- dyn
- · Replies 1 ·
Graduate Why the photoelectric absorption section finite at threshold
- zweiling
- · Replies 2 ·
Graduate Geometric measure of entanglement for fermions or bosons?
- zweiling
- · Replies 2 ·
Graduate How is quantum interference achieved with atoms fired from opposite directions?
- Jilang
- · Replies 17 ·
Graduate A brief question on quantum thermodinamics.
- Alex Cros
- · Replies 8 ·
Graduate Why does the trace of [x,p] equal zero but the trace of iℏ doesn't?
- dyn
- · Replies 38 ·
Graduate How can we explain continuous absorption / emission?
- DomPhillips
- · Replies 1 ·
Graduate Casimir Effect and Calculate Energy Density of it
- Quarlep
- · Replies 7 ·
Graduate Is Quantum Teleportation Possible Through Electron-Positron Annihilation?
- ryanuser
- · Replies 2 ·
Graduate How would observation of the state of qubits affect them?
- ant0n
- · Replies 10 ·
Graduate Operators for measuring superposition component distinctnes?
- Agrippa
- · Replies 3 ·
Graduate How Does the Pauli Exclusion Principle Limit Electron Spin Directions?
- Chemer
- · Replies 1 ·
Graduate Double slit experiment and Interaction
- Rajkovic
- · Replies 121 ·
Graduate Is the Holographic Universe Theory a Valid Concept?
- Rajkovic
- · Replies 10 ·
Graduate Why doesn't orbital angular momentum operator L commute with scalar operator S?
- fayled
- · Replies 2 ·
Graduate Quantum entanglement can be used for achieve FLT
- Athul Prem
- · Replies 2 ·
Graduate What is the Physical Meaning of the Hartree-Fock Approximation?
- jl29488
- · Replies 2 ·
Graduate Using Quantum Entanglement to know the future?
- kinkarso
- · Replies 14 ·
Graduate Difference Between Two Thoughts on Wave Function Collapse?
- cmkluza
- · Replies 8 ·
Graduate Dirac Equation and Pauli Matrices
- HeavyMetal
- · Replies 6 ·
Graduate How do proton spin and nuclear interactions affect binding energy?
- akashpandey
- · Replies 1 ·
Graduate Quantum states as normal vectors
- jimmycricket
- · Replies 11 ·