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.
Sub-forums
Threads
Undergrad Why is the coupling factor constant in QFT?
- Haorong Wu
- · Replies 1 ·
Undergrad How to find common eigenbases of momentum and energy in infinite well?
- LightPhoton
- · Replies 9 ·
Undergrad Has superdeterminism been proven recently?
- vertig0
- · Replies 3 ·
High School What particle represents the mass-energy conversion in a proton?
- veemon293
- · Replies 4 ·
High School How would a hypothetical graviton escape a black hole?
- DaveC426913
- · Replies 10 ·
Graduate Any relation between Quantum Chaos and Quantum Field Theory?
- mad mathematician
- · Replies 10 ·
Graduate Spectral Decomposition of Constant Functions Utilizing Fourier Harmonics
- Bret Danfoss
- · Replies 7 ·
Undergrad Lagrangian Mechanics, Continuous Particle Paths and QFT
- Islam Hassan
- · Replies 6 ·
Undergrad Why do ##t## and ##-i\hbar\partial_t## not satisfy the definition of a linear map/operator in Hilbert space?
- Dr_Nate
- · Replies 4 ·
Undergrad Meaning of eigenvalue of projection operator/projector
- LightPhoton
- · Replies 17 ·
Undergrad Counting Total Spin for N Two-Level Systems (TLS)
- Haris
- · Replies 1 ·
Graduate Representation in second quantization
- hokhani
- · Replies 7 ·
High School In QFT, do Fermion fields belonging to distinguishable particles commute or anti commute?
- Paul Colby
- · Replies 19 ·
Undergrad Born rule as an axiom or as a theorem?
- nomadreid
- · Replies 7 ·
High School Why expectation values work for non-eigenfunctions of an operator
- HAYAO
- · Replies 8 ·
Undergrad Does quantum field theory resolve wave-particle duality and measurement?
- bhobba
- · Replies 9 ·
Undergrad Question on interference equation in a recent paper
- msumm21
- · Replies 8 ·
Undergrad How can I estimate the K force constant for bond types without special tools?
- Lahearle
- · Replies 2 ·
Graduate Schrodinger equation/Madelung equation phase transformation
- binbagsss
- · Replies 32 ·
High School Double-slit experiment and time
- Enlanda
- · Replies 24 ·
Graduate Acceleration in quantum mechanics
- hokhani
- · Replies 18 ·
Undergrad Is There A Study Showing The Observer Effect Ignoring Conscious Intent?
- Adon
- · Replies 3 ·
Undergrad Expectation value of the momentum for an electron in a box
- Haorong Wu
- · Replies 3 ·
Graduate Seeking papers on Energy Level Diagrams for LiNO2 and O2
- Adrian Tudini
- · Replies 0 ·
High School Quantum Superposition And A Coin
- Agent Smith
- · Replies 25 ·
Undergrad Volume of momentum space of an ideal gas
- LightPhoton
- · Replies 8 ·
Undergrad Meaning of the word 'particle'
- Qwadratix
- · Replies 11 ·
Undergrad Do physically rotating particles affect Stern Gerlach results?
- CountingKeys
- · Replies 16 ·
Graduate Polarization in a 3 level system
- Malamala
- · Replies 0 ·
Undergrad What are the implications of this "Negative Time Experiment"?
- James2018
- · Replies 19 ·
Graduate Time-dependent perturbation theory with exact H₀ solution
- Malamala
- · Replies 4 ·
Graduate What is the quantum picture of laser field accelerating free electrons?
- gaiussheh
- · Replies 6 ·
Undergrad Number of Higgs "particles" per unit volume
- mister i
- · Replies 4 ·
Undergrad Does quantum tunnelling affect the magnitude of the Casimir Effect?
- Eukonidor
- · Replies 21 ·
Undergrad Infinite energy from an electric field?
- p78653
- · Replies 12 ·
Undergrad Why protective measurement is important to understand psi?
- MichPod
- · Replies 5 ·
Undergrad Are solutions to the time-dependent Schrödinger equation eigenvalue solutions?
- wirefree
- · Replies 6 ·
High School 3 Particle entanglement
- Isaac Hart
- · Replies 23 ·
Undergrad Calculating qubit purity/entanglement in a quantum computer
- Bob Walance
- · Replies 0 ·
Graduate QED and photon path experiments
- LightPhoton
- · Replies 16 ·
Graduate Interesting Paper On QFT and Quantum Measuremets
- bhobba
- · Replies 10 ·
Undergrad The claymath 4-d QFT problem and virtual particles (as an example)
- billtodd
- · Replies 36 ·
Graduate A question of separability and entanglement
- andresB
- · Replies 11 ·
High School Wave function, measurement, and electron motion in quantum mechanics
- Musti425
- · Replies 11 ·
Undergrad Textbook proof of repulsion/attraction of equal charges according to odd/even spin
- arivero
- · Replies 7 ·
Undergrad Are Dot Products and Dirac Brackets Interchangeable in Vector Mathematics?
- sonnichs
- · Replies 10 ·
High School What does it mean that Planck's constant is an energy oscillator?
- hongseok
- · Replies 6 ·
High School Double slit experiment wave collapse
- Mkwglyg
- · Replies 2 ·
Undergrad The coefficient of expansion for spin addition
- hokhani
- · Replies 4 ·
Undergrad Some notes on stochastic physics
- ergospherical
- · Replies 1 ·
Insights Brownian Motions and Quantifying Randomness in Physical Systems
- ergospherical
- · Replies 1 ·
Undergrad Does a certainty in the position imply infinite variation in speed?
- Giuseppino32
- · Replies 4 ·
High School Why do photon polarization experiments show similar outcomes in different situations?
- gohu
- · Replies 11 ·
Graduate How does QFT treat Young’s Double-Slit Experiment?
- Quant
- · Replies 18 ·
Undergrad What's the relation between spinor space and SO(3) vector space?
- joneall
- · Replies 53 ·
Graduate Computer Model for a QCL laser
- Adrian Tudini
- · Replies 1 ·
Graduate Gravity has finite reach? (per Claudia de Rahm)
- rolnor
- · Replies 11 ·
Undergrad Does a Sensor interact with atoms in the double slit experiment?
- user079622
- · Replies 17 ·
Undergrad How does a photon travel?
- Green dwarf
- · Replies 9 ·
Undergrad The components of Dirac Equation -- Bosonic Lagrangian?
- arivero
- · Replies 8 ·
Undergrad How Does the Heisenberg Uncertainty Principle Relate to Electron Confinement?
- walker35867
- · Replies 16 ·
Undergrad Simulation of CHSH inequality experiment in Excel
- lostinmygarden
- · Replies 61 ·
Graduate Method of calculating the vacuum energy divergence
- Haorong Wu
- · Replies 2 ·
Undergrad Vacuum decay likelihood and consequences
- KleinMoretti
- · Replies 1 ·
Graduate Time-ordered products derivation in "QFT and the SM" by Schwartz
- Hill
- · Replies 5 ·
Undergrad Scaling Dimension of a Field in CFT
- shinobi20
- · Replies 0 ·
High School Does Particle System Collapse Depend on Mass, Momentum, or Complexity?
- AndrzejB
- · Replies 5 ·
Graduate Calculating higher order terms for Electron Anomalous Magnetic Moment
- Adrian59
- · Replies 6 ·
Undergrad FTL signals connected to a previous non-FTL discussion are possible?
- ESponge2000
- · Replies 8 ·
Graduate Converting momentum sums to integrals in curved spacetime
- KariK
- · Replies 1 ·
Undergrad Laser interference pattern flickering
- basiler
- · Replies 1 ·
High School Can the probabilities of state vectors |r⟩ and |i⟩ be determined from |ψ⟩?
- hongseok
- · Replies 2 ·
Undergrad Aligning a 405 nm laser, BBO SPDC source and fiber optic for entangled photon generation
- PokemanDude
- · Replies 1 ·
High School Is it possible to apply thermodynamics to magnetic/weak/nuclear fields
- Ignorantsmith12
- · Replies 2 ·
Undergrad Will all objects in the Universe transform into black holes through quantum tunneling?
- Suekdccia
- · Replies 7 ·
High School Gluons turning into quarks and antiquarks
- PotatoMan
- · Replies 8 ·
Undergrad Laser interference fringes fading in and out of view
- PokemanDude
- · Replies 30 ·
Undergrad Vacuum decay, tunneling and terminal vacua in cosmology
- Suekdccia
- · Replies 29 ·
High School Determining Electron's Momentum and Position Simultaneously
- lisathomas
- · Replies 4 ·
Graduate Multi-scale Decoherence and the Quantum-to-Classical Transition
- asklepian
- · Replies 3 ·
Graduate Magnetic Vorticies In Superconductors Don't Confine Electrons
- Hornbein
- · Replies 0 ·
Graduate Going from Kronecker deltas to Dirac deltas
- MaestroBach
- · Replies 15 ·
Undergrad Poisson spot with single photons
- Quant
- · Replies 35 ·
Undergrad Mathematical basics of quantum mechanics
- Spathi
- · Replies 21 ·
Undergrad Could Quantum Dots Between Optic Fibers Create Photon Interference?
- Quant
- · Replies 6 ·
Undergrad Degenerated perturbation theory
- Lucas-
- · Replies 3 ·
Undergrad von Neumann measurement Hamiltonian in Stern-Gerlach devices
- Kyuubi
- · Replies 2 ·
Graduate Questions about scale dependence and renormalization schemes
- Isaac0427
- · Replies 2 ·
Undergrad What is the meaning of "same direction" for spin measurement?
- Heidi
- · Replies 10 ·
Graduate Regarding Nucleon Penetration into stationary plasma cloud
- RatTrap85
- · Replies 9 ·
Undergrad Are certain combinations of quantum numbers (basis vectors) forbidden?
- Happiness
- · Replies 1 ·
Graduate Information loss in time dilation near black holes vs. quantum decoherence
- asklepian
- · Replies 5 ·
Undergrad How to Show \(\psi_{i}\ket{\xi} = \xi_{i}\ket{\xi}\)?
- thatboi
- · Replies 4 ·
Undergrad Will an electron release energy when it is added into an atom?
- Sameer Tahir
- · Replies 6 ·
Graduate Is delayed choice remote entanglement of photons derived from TDSE?
- DrChinese
- · Replies 58 ·
Graduate Hard-Core Boson Model in K space
- partyday
- · Replies 0 ·
Undergrad Evaluating Taylor Series at the Mid-Point
- thatboi
- · Replies 3 ·
Undergrad Why is m_j not a good quantum number in strong-field Zeeman effect?
- Happiness
- · Replies 2 ·
High School Can energy be stored in a single particle indefinitely?
- Suekdccia
- · Replies 29 ·
Graduate Link between Kraus operators and PVMs
- ueu
- · Replies 0 ·