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 Who wrote "Ch 6 Groups & Representations in QM"?
- pellis
- · Replies 3 ·
High School Does this connect Quantum Theory and Special Relativity?
- QuantumTheoryThinker
- · Replies 8 ·
Undergrad Force as a Time Derivative of ihk
- Bob Dylan
- · Replies 6 ·
Graduate Berry phase and parallel transport
- Joker93
- · Replies 22 ·
Graduate Path Integral of a Spontaneously Broken Theory
- JRudolfo
- · Replies 15 ·
Undergrad Feynman's Thesis, 3 Principles
- jamie.j1989
- · Replies 2 ·
Graduate Mathematical Quantum Field Theory - Quantization - Comments
- Urs Schreiber
- · Replies 15 ·
Undergrad What is the difference between virtual and real particles in string theory?
- Souhardya Nandi
- · Replies 10 ·
High School Gravity and spin 2 representation
- jk22
- · Replies 1 ·
Undergrad Source of energy for quantum tunneling of a particle
- SameerTahir
- · Replies 27 ·
Graduate What Are the Average Tunneling Electron Energies in a Ti/Nb2O5/Ti MIM Device?
- PhilQ
- · Replies 6 ·
High School Biggest Bosenova: Milligram Range Feasible?
- stefanbanev
- · Replies 6 ·
Undergrad Wheeler's delayed choice doesn't change the past
- Alfredo Tifi
- · Replies 157 ·
Undergrad Field operators and the uncertainty principle
- phoenix95
- · Replies 8 ·
Undergrad Quantum nonlocality and entanglement
- Spar
- · Replies 3 ·
Undergrad What does a zero-value of the Born-condition mean?
- SeM
- · Replies 30 ·
Undergrad Noncommuting observables and indeterminacy principle
- microsansfil
- · Replies 6 ·
Undergrad Is this a Stirling number of the second kind?
- HAYAO
- · Replies 2 ·
Undergrad Principles of a Second Quantum Mechanics
- microsansfil
- · Replies 5 ·
Graduate Mathematical Quantum Field Theory - Propagators - Comments
- Urs Schreiber
- · Replies 6 ·
Undergrad Does light exist between events?
- bremsstrahlung
- · Replies 6 ·
Graduate Mathematical Quantum Field Theory -- Equations? So what?
- John1945
- · Replies 7 ·
Graduate Mathematical Quantum Field Theory - Symmetries - Comments
- Urs Schreiber
- · Replies 9 ·
Graduate Mathematical Quantum Field Theory - Phase Space - Comments
- Urs Schreiber
- · Replies 7 ·
Graduate Solving the Schrödinger equation for free electrons
- SeM
- · Replies 2 ·
Graduate What are typical initial conditions for the Schrödinger eq?
- SeM
- · Replies 5 ·
Undergrad What is the difference between cfd and realism?
- entropy1
- · Replies 26 ·
Undergrad Eigenvectors - eigenvalues mappings in QM
- LarryS
- · Replies 2 ·
Undergrad Measuring particles through experiments
- _PJ_
- · Replies 13 ·
Undergrad What is the value of "delayed choice" experiments?
- MichPod
- · Replies 25 ·
High School Preserving local realism in the EPR experiment
- kurt101
- · Replies 81 ·
Graduate Why do space translations satisfy the Wigner's Theorem?
- NessunDorma
- · Replies 7 ·
Undergrad How elementary particles form matter
- LeInvertedPenguine
- · Replies 4 ·
Undergrad Why is a cavity radiator a perfect black body emitter?
- kal
- · Replies 9 ·
Undergrad Einstein's View of Quantum Mechanics
- bhobba
- · Replies 43 ·
Undergrad Does measurement destroy the interference pattern in the 2-slit experiment?
- Kostik
- · Replies 12 ·
Graduate Mathematical Quantum Field Theory - Gauge Fixing - Comments
- Urs Schreiber
- · Replies 1 ·
Undergrad Superposition state and wavefunction collapse
- dyn
- · Replies 13 ·
High School Is Quantum Interference Evidence of Multiple Universes?
- TheQuestionGuy14
- · Replies 74 ·
High School Deriving the Schrödinger equation from the Laplacian form
- Joao
- · Replies 5 ·
Graduate QM: Probability of measuring momentum
- WWCY
- · Replies 2 ·
Undergrad Hilbert space and conjugate of a wave function
- amjad-sh
- · Replies 17 ·
Undergrad Solving Dirac Algebra Arithmetic
- 43arcsec
- · Replies 1 ·
Undergrad Why this system has a rotational symmetry in Dirac equation?
- winding bird
- · Replies 2 ·
High School Does Quantum Immortality really mean we are immortal?
- TheQuestionGuy14
- · Replies 5 ·
Undergrad Momentum Entanglement: The Technicalities and Usage in Electron Experiments
- ftr
- · Replies 3 ·
Undergrad Computing CHSH violation bound
- facenian
- · Replies 7 ·
High School How and why do electron quantum numbers affect bonding?
- Hallucinogen
- · Replies 11 ·
Undergrad Infinitely strong magnetic field
- Hami Hashmi
- · Replies 7 ·
Graduate How high of atomic number to get g-block electrons?
- swampwiz
- · Replies 2 ·
Undergrad Path bending in Feynman's QED reflection explanation
- Swamp Thing
- · Replies 6 ·
Undergrad Quantum field theory and the hydrogen atom
- arupel
- · Replies 7 ·
High School Two Confusing Entanglement Scenarios
- Isaac0427
- · Replies 9 ·
Undergrad Can individual photons be directly observed?
- ftr
- · Replies 12 ·
Undergrad Are force-mediating particles real or just perturbative artifacts?
- ftr
- · Replies 15 ·
Graduate Does a wavefunction in a cartesian system create a one-dimensional subspace?
- SeM
- · Replies 11 ·
Undergrad Negative and Positive energy modes of KG equation
- bananabandana
- · Replies 1 ·
High School Does gravity affect quantum transition amplitudes?
- Aidyan
- · Replies 5 ·
Undergrad How Can Quantum Optics Model Gradually Varying Loss in Optical Media?
- Swamp Thing
- · Replies 1 ·
Undergrad Heuristic for simple two-photon scattering problems
- Swamp Thing
- · Replies 1 ·
Undergrad How does QFT handle particle creation and conversion?
- ftr
- · Replies 3 ·
Undergrad How do you find the inverse of field transformations in Noether's theorem?
- facenian
- · Replies 7 ·
High School Planck-Einstein relation and the Photoelectric Effect
- Abu
- · Replies 3 ·
High School Does detecting which path a charged particle takes alter the field everywhere?
- Vendicar Decarian
- · Replies 16 ·
Undergrad Why don't soft photons cause infrared divergences in total energy?
- asimov42
- · Replies 2 ·
Undergrad QM Assumptions Regarding Entanglement Properties
- Dadface
- · Replies 112 ·
Undergrad Partition functions for fermion gas in stat mechanics vs Dirac QFT
- Iliody
- · Replies 5 ·
Graduate Is Normalizing a 4x4 Matrix Possible Using Multiple Methods?
- wondering12
- · Replies 2 ·
Undergrad Does 'Phase Inversion' grow exponentially?
- Ricardo Belchior
- · Replies 11 ·
Graduate Collision integral approximation in boltzmann equation
- mertcan
- · Replies 8 ·
Undergrad 2D LHO calculate ground state energy
- Das apashanka
- · Replies 8 ·
Undergrad Self education: how to proceed from QM to QFT?
- MichPod
- · Replies 22 ·
Graduate Is there an alternative form of the zero point energy?
- SeM
- · Replies 14 ·
High School Kim et al, 1999 experiment and causality
- Joao
- · Replies 28 ·
Undergrad How energy of light is conserved when passing through medium
- Gevorg
- · Replies 3 ·
Undergrad Why does the neutron lifetime seem surprisingly long?
- tzimie
- · Replies 6 ·
Graduate Schouten identity resembles Jacobi identity
- MathematicalPhysicist
- · Replies 3 ·
High School Could a bouncing particle theory explain quantum behavior?
- Martin Rousev
- · Replies 1 ·
High School Correct English convention for |Psi|^2?
- Aidyan
- · Replies 4 ·
Undergrad Can phase shifts δl be calculated in scattering theory?
- Ado
- · Replies 2 ·
Undergrad Is Detailed Balance Satisfied in a Two-State System in Quantum Mechanics?
- cozycoz
- · Replies 1 ·
Graduate Derivation of the Casimir energy in flat space
- highflyyer
- · Replies 3 ·
Graduate How spin projector got included in inverse of Matrix?
- wondering12
- · Replies 1 ·
Undergrad Angular momentum state of a system
- yamata1
- · Replies 6 ·
Undergrad Why is the potential derivation in Zee's QFT in a nutshell not true QFT?
- ftr
- · Replies 4 ·
Insights The Vacuum Fluctuation Myth - Comments
- A. Neumaier
- · Replies 220 ·
Undergrad How to factorize the hydrogen atom Hamiltonian?
- yamata1
- · Replies 5 ·
High School Does Human Observation Affect the Double Slit Experiment Results?
- laymanB
- · Replies 99 ·
Undergrad Commutator of p and x/r: Elegant Derivation in Position Basis
- VKint
- · Replies 2 ·
High School Expanding space time and Virtual particles
- Mcbleak
- · Replies 6 ·
Graduate Generalizing distinguishability of photons on HOM dip?
- Cleber
- · Replies 1 ·
High School Spontaneous increase in energy level
- Getterdog
- · Replies 4 ·
Undergrad Meaning of Dirac Delta function in Quantum Mechanics
- Ibraheem
- · Replies 18 ·
Undergrad Why doesn't measuring a photon's polarization violate the no-clone theorem?
- fog37
- · Replies 9 ·
Graduate Fermi and Bose gas in statistical mechanics
- Sang-Hyeon Han
- · Replies 1 ·
Graduate Is the Nexus Graviton a Thing?
- Gort
- · Replies 4 ·
Undergrad Hidden dimensions and quadratic term of a free field
- victorvmotti
- · Replies 4 ·
Graduate Reasonable measurement of both coordinate and momentum?
- MichPod
- · Replies 3 ·
Undergrad Energy of an electron with Schrodinger's equation
- cc94
- · Replies 4 ·
Undergrad Operation on complex conjugate
- Thejas15101998
- · Replies 2 ·