Quantum Physics Forum

Post thread
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.

Quantum Interpretations and Foundations

Undergrad "The wavefunction never collapses"
Graduate Flexibility in Grover's Algorithm?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Field screening in the electron
  • · Replies 2 ·
Replies
2
Views
2K
Graduate What is the hardware for quantum gates?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Bra-ket notation to Matrix for entangled pairs
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Where does photon interference happen
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Classical versus quantum information
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Rigorous treatments of double-slit , quantum eraser, etc.
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Probability current proportional to density
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Heisenberg-Robertson uncertainty relation vs. noise-disturbance measures
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Examining Coherent States: a|0⟩=0|0⟩=0
  • · Replies 27 ·
Replies
27
Views
4K
Undergrad What is passive locality ? Bell's Theorem.
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Radiation of an accelerated charge
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Probabilities & Observed Reality
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Is Eventum Mechanics the Same as CSL?
  • · Replies 1 ·
Replies
1
Views
1K
Graduate How to Measure Entangled Photons in the 45/135 Basis with Wave Plates and PBS?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Disturb a complex massive field, apply force ?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What is entanglement purification and how does it work?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Number of Photons In Each Section
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Peculiarities of photons in quantum optics
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Adroit Measurements in Reaching Conclusion
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Two complex fields + interaction, conserved current?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate How to graph Dirac equation, some complex numbers?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Macroscopic quantum effects and gravitational wave detector
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What Happens to Entangled Photons at a Beam Splitter?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Bruce Rosenblum, author of Quantum Enigma
  • · Replies 1 ·
Replies
1
Views
2K
Graduate How Do Wave Plates Influence Photon Entanglement and Measurement?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Evolution of Photons from Bell-States to Separable States
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Collapse Models of Quantum Mechanics
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Pilot wave without non-locality
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Quantum Teleportation / Beam Splitters
  • · Replies 1 ·
Replies
1
Views
2K
Graduate How Is Mass Generated Dynamically in Quantum Field Theory?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate 3D phase space of point particle and spinors.
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Majorana equation in Algebra of Physical Space
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Can this classical double-slit experiment duplicate loss of interference?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Question about quantum statistical mechanics and thermodynamic arrow of time
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Shape-Invariant Potentials in N=2 SUSY QM
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Clarification of the Pauli exclusion princple
  • · Replies 11 ·
Replies
11
Views
2K
Undergrad Why does the Dirac equation lead to spin 1/2?
  • · Replies 8 ·
Replies
8
Views
8K
Undergrad Complete list of Feynman diagrams
  • · Replies 3 ·
Replies
3
Views
4K
Graduate What is a 'Quantum Coherence'?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Path Integral QM: Intro and Forward/Backward Scattering
  • · Replies 1 ·
Replies
1
Views
2K
High School Bohr's duality paradox 100 years later?
  • · Replies 71 ·
3
Replies
71
Views
7K
Graduate Possible similarity between Classical and Quantum photon definition
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Vector Notation of Quantum States for 2 Qubit System
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Pauli exclusion principle and Hermitian operators
  • · Replies 15 ·
Replies
15
Views
3K
Graduate Do QED effects make a huge change to the position of the electrons?
  • · Replies 20 ·
Replies
20
Views
3K
Undergrad Unveiling the Mystery of Entangled Particle Spin
  • · Replies 11 ·
Replies
11
Views
4K
Graduate One Loop Correction to a 4 pt. function in 3 dimensions
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Expectation value of the occupation number in the FD and BE distributions
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Discrete K-G eq. solutions - problem with integral
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad What Are the Key Properties and Measurements of Pauli Matrices?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Could the probability distribution itself be quantised?
  • · Replies 1 ·
Replies
1
Views
1K
High School Can Electrical Repulsion Distort Electron Orbits in Atoms?
  • · Replies 3 ·
Replies
3
Views
2K
High School Do Entangled Photons React to possible Photon-Photon Collisions?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Why is Spin-Orbit Coupling Important in Understanding Quantum Systems?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Transition in LS-coupling confusion
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Alternative linear comb. to vizualize hydrogenic orbitals p,d etc
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Solutions to the TISE for unbound states
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Molecular States, Symmetry and Allowed Transitions
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How to understand the Bloch sphere in the quantum computation?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Query about an article on quantum synchronization
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Hamiltonian in QM for QFT forces/fields effects
  • · Replies 26 ·
Replies
26
Views
4K
Undergrad Kim's 1999 delayed-choice quantum eraser experiment
  • · Replies 23 ·
Replies
23
Views
5K
Graduate Does there exist a super-quantum correlation in mixed-state formalism
  • · Replies 3 ·
Replies
3
Views
1K
Graduate Which operator corresponds to the Green function in QFT?
  • · Replies 11 ·
Replies
11
Views
2K
Graduate What is the relationship between QFT and QM?
  • · Replies 34 ·
2
Replies
34
Views
6K
Graduate Why "Green's function" is used more than "correlations" in QFT?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate No hidden variables in QM - a paradigm shift?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Eigenstates and repeated measurements
  • · Replies 5 ·
Replies
5
Views
2K
Graduate How does Bell's 1964 theorem address detector independence and local realism?
  • · Replies 18 ·
Replies
18
Views
3K
High School What Is the Role of Density Matrices in Describing Quantum Mixtures?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate The line between quantum and large scale objects
  • · Replies 1 ·
Replies
1
Views
3K
High School Proietti 2019 experiment: Doubt in measuring A1(B1)
  • · Replies 1 ·
Replies
1
Views
1K
High School Can superposition be attained for multiple states at once?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Second Quantized Minimal Basis Hamiltonian of H2
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Is there a principle of stationary action for QFT?
  • · Replies 8 ·
Replies
8
Views
2K
Graduate Do we need stochasticity in a discrete spacetime?
  • · Replies 2 ·
Replies
2
Views
1K
Graduate Can we create a random variable using QED effects?
  • · Replies 25 ·
Replies
25
Views
3K
Undergrad Does the Compton wavelength put a limitation on position measurements?
  • · Replies 5 ·
Replies
5
Views
3K
Graduate How to mathematically write down a probability of measuring a particle
  • · Replies 1 ·
Replies
1
Views
957
Undergrad Would these (unrealistic) conditions imply gravitons existed?
  • · Replies 3 ·
Replies
3
Views
1K
Graduate Calculating transition rate between nljm resolved states
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Help with quantum computing notation
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Regarding the Born approximation
  • · Replies 1 ·
Replies
1
Views
1K
Graduate What is the relationship between angular momentum and energy in electrons?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Photons interacting with multiple matter particles
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Water molecule absorbing radiation (or not?)
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Matriz Lz, m=2, but in x,y,z basis
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Rayleigh Ritz with two Particles
  • · Replies 1 ·
Replies
1
Views
2K
High School Is this a good way of "dumbing down" superposition?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Why Are My Tensor Products Not Adding Up Correctly?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Feynman Double-Slit: 2nd Slit Effects Explored
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Rearranging the doulbe slit experiement?
  • · Replies 1 ·
Replies
1
Views
1K
High School Variations of the Double Slit?
  • · Replies 30 ·
2
Replies
30
Views
3K
Graduate Nonclassicality described mathematically
  • · Replies 6 ·
Replies
6
Views
2K
Graduate How, and in what atoms does the Lamb shift occur?
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad Choosing the eigenvector stochastically
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Is There a Connection Between QHO and Angular Momentum?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Do different paths of an electron interfere with each other?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Spatial linewidth and density matrix
  • · Replies 1 ·
Replies
1
Views
2K