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 Conformal Invariance Klein Gordon Action
- FedEx
- · Replies 6 ·
Undergrad Reason a Dineutron is not bound?
- wil3
- · Replies 7 ·
Undergrad How Big is a Photon and What are its Dimensions?
- billy_boy_999
- · Replies 74 ·
Graduate Quantam Vacuum - Strong Electric fields.
- Adrenaline_
- · Replies 1 ·
Graduate Distinction between real and virtual photon
- exponent137
- · Replies 6 ·
Graduate What causes a particle to change directions
- g.lemaitre
- · Replies 1 ·
Graduate Semester Project concerning Feynman Diagrams
- PraoWolf
- · Replies 3 ·
Graduate Proving HO Eigenvalues Using Ladder Operators
- Loro
- · Replies 6 ·
Graduate How Long Does a Photon Retain Its Spin After Dis-Entanglement?
- San K
- · Replies 8 ·
Graduate Eigenvalue of position operator and delta function.
- maser
- · Replies 1 ·
Graduate How can we know initial state of a particle
- bob900
- · Replies 5 ·
Graduate Spin statistic terms in absorption cross section
- FunkyDwarf
- · Replies 4 ·
Graduate What Happens When an Electron Enters an Infinite Square Well?
- VortexLattice
- · Replies 4 ·
Need recommendation for good popular science book on QM
- d3mm
- · Replies 5 ·
Graduate A night with the stars (Brian Cox on telly)
- dgwsoft
- · Replies 123 ·
Graduate Solving Complex Number Equations
- mvww
- · Replies 1 ·
Graduate Is the unpredictability of clouds due to QM uncertainty?
- g.lemaitre
- · Replies 3 ·
Graduate Is SPIN a calculated or physically measureable characteristic?
- daisey
- · Replies 40 ·
Graduate Deriving the Propagator: Understanding Zee's Book and the Fourier Transform
- BWV
- · Replies 3 ·
Graduate Why is a time-dependent Hamiltonian different in quantum mechanics?
- dEdt
- · Replies 2 ·
Graduate Two-fermion system wave function
- PhyPsy
- · Replies 5 ·
Graduate Verifying Eigen Solutions for H2 Molecule
- LagrangeEuler
- · Replies 1 ·
Graduate A double double split experiment?
- QuantumHop
- · Replies 1 ·
Graduate Can double slit interference be explained by the influence of previous photons?
- patfada
- · Replies 5 ·
Graduate Quantum eraser and super luminous communication
- alas666
- · Replies 13 ·
Graduate Double Slit Experiment: Interference Patterns & Worldlines
- JPBenowitz
- · Replies 2 ·
Graduate Why is coherence and entanglement complementary?
- San K
- · Replies 8 ·
Graduate Deriving the Total Energy from Blackbody Radiation: A Mathematical Approach
- Xyius
- · Replies 2 ·
Graduate Does Relativity Affect Quantum Entanglement?
- serp777
- · Replies 13 ·
Graduate Did the particle deflect due to the change in B field to an E field in my frame?
- cragar
- · Replies 5 ·
Graduate Calculate Casimir force between several plates
- Marianp
- · Replies 1 ·
Graduate Understanding the Composition Rule and Transformation Law in Weinberg's QFT
- cosmic dust
- · Replies 2 ·
Graduate How can angular momentum be quantized?
- dEdt
- · Replies 6 ·
Graduate Time Dilation in QM: Elevator Experiment
- cragar
- · Replies 3 ·
Graduate General Question About Path Integral Formulation of QM
- charlemagne94
- · Replies 3 ·
Graduate Quantum Particle - Spread Throughout the Universe
- StevieTNZ
- · Replies 1 ·
Graduate Secound Quantization: Definition, Meaning & Wavefunction ψ
- sugeet
- · Replies 15 ·
Graduate Understanding Bra-Ket Notation and the Spin-Statistics Theorem
- bahamagreen
- · Replies 3 ·
Graduate Is Work Done During Adiabatic Compression of a Quantum State?
- Prathyush
- · Replies 3 ·
Graduate What is the Correct Value of the Square of a Momentum Operator?
- hnicholls
- · Replies 3 ·
Graduate Conservation of angular momentum in field theory: imposed, or emergent?
- bcrowell
- · Replies 18 ·
Graduate Double slit experiment violates triangle inequality?
- Cruikshank
- · Replies 34 ·
Graduate Why an atom can have nonzero toal angular momentum in the ground state?
- wdlang
- · Replies 3 ·
Graduate Quantum mechanics and indeterminism essay help
- 113256
- · Replies 1 ·
Graduate Is this person right about particle wave duality?
- LogicX
- · Replies 3 ·
Graduate Quantum Telecommunication for dummies (me)
- sday
- · Replies 20 ·
Graduate How does the amplitude on a EM wave graph correspond to the number of photons?
- curiousatlarg
- · Replies 4 ·
Graduate Where are Heisenberg's Lost Notes?
- Lamarr
- · Replies 4 ·
Graduate Could Quantum Jumps Occur Through Hidden Dimensions?
- Shyelude
- · Replies 12 ·
Graduate Does [H,P]=0 imply no scattering in field theory?
- geoduck
- · Replies 7 ·
Graduate What's the meaning of the commutator? Not satisfied with usual answer
- dEdt
- · Replies 10 ·
Graduate Do commutators hold in interacting theory?
- geoduck
- · Replies 7 ·
Undergrad How Schro discovered his equation
- g.lemaitre
- · Replies 4 ·
Graduate Why does the which path information collapse the wave function?
- Xtyn
- · Replies 33 ·
Graduate When Electricity Takes the Shortest Path, is that Due to Quantum Mechanics?
- Smedlington
- · Replies 13 ·
Graduate Why Does the Green Curve Have Higher Probability at the Left of the Barrier?
- Black Integra
- · Replies 2 ·
Graduate What does a Bell measurement mean in quantum teleportation?
- McLaren Rulez
- · Replies 7 ·
Undergrad L=0 State: Understanding Angular Momentum and Orbital Movement
- quantum123
- · Replies 6 ·
Graduate How does potential act as a boundary for electrons in infinite well
- Dammes
- · Replies 1 ·
Graduate Weyl spinor notation co/contravariant and un/dotted
- oliveriandrea
- · Replies 5 ·
Graduate Can Quantum Entanglement Help Achieve Light Speed?
- Sohma Shigure
- · Replies 1 ·
Graduate Gauging non-compact lie groups
- jarod765
- · Replies 1 ·
Graduate A problem with the wave packet concept?
- Lamarr
- · Replies 11 ·
Graduate Fermions vs Bosons: Low Temp Effects
- nouveau_riche
- · Replies 34 ·
Graduate What do vector operators mean?
- dEdt
- · Replies 12 ·
Graduate What do we mean by spin of a particle when we say it a point particle
- nouveau_riche
- · Replies 16 ·
Graduate Is quantum entanglement unaffected by fields/forces?
- San K
- · Replies 4 ·
Graduate Electrons Entangled with Nucleus?
- LarryS
- · Replies 4 ·
Graduate Is the wave function a relative wave (entanglement)
- QuantumHop
- · Replies 5 ·
Undergrad Can photons have mass and momentum?
- mysteriously
- · Replies 1 ·
Graduate Is the Coincidence Counter Essential in Birgit Dopfer's Experiment?
- alexepascual
- · Replies 2 ·
Graduate Eigenfunctions of Operators with Continuous Sprectra
- Sferics
- · Replies 5 ·
Graduate Spin and the violation of the speed of light
- g.lemaitre
- · Replies 7 ·
Graduate The erase of quantum states by measurement
- Allojubrious
- · Replies 2 ·
Why do my threads keep getting deleted?
- Rational T
- · Replies 1 ·
Graduate The wave-function of the universe
- Rational T
- · Replies 5 ·
Graduate Entanglement - Does FTL via entanglement violate causality or relativity?
- San K
- · Replies 22 ·
Graduate Attractive forces in 3-d space
- morg
- · Replies 2 ·
Graduate Particle Movement: The Importance of Distance and Shape at the Smallest Scale
- fredreload
- · Replies 3 ·
Undergrad Rydberg Constant: What Does Re Refer To?
- g.lemaitre
- · Replies 2 ·
Graduate Calculate Particle Wave Function Over 1 Planck Time
- hubble_bubble
- · Replies 3 ·
Graduate What is Quantum Tunnel Splitting in a Double Well Potential?
- mundhada
- · Replies 1 ·
Graduate Is a-causality necessary for randomness?
- San K
- · Replies 49 ·
Graduate Covariant commutation relation in Mandl and Shaw
- shahbaznihal
- · Replies 8 ·
Graduate Some inconsistency on operator expectation value
- karlzr
- · Replies 7 ·
Graduate Poisson Bracket - Constrained system
- vnikoofard
- · Replies 3 ·
Graduate I am aware that physicists are trying to derive born rule from unitary evolution
- Prathyush
- · Replies 7 ·
Graduate Gaussian wavepacket and position-momentum uncertainty
- solas99
- · Replies 4 ·
High School Will My Double Slit Experiment Setup Using an Electron Gun Work?
- DLHill
- · Replies 12 ·
Graduate Significance of commutation of operators? position and momentum
- solas99
- · Replies 3 ·
Graduate Difference between eigenvalue and an expectation value
- solas99
- · Replies 1 ·
Graduate POVM Measurement Example: Intuitive & Easy-to-Understand
- Demystifier
- · Replies 6 ·
Graduate Suppose i am performing the diffraction experiment using a single electron
- nouveau_riche
- · Replies 4 ·
Graduate Operators and commutation of operators
- solas99
- · Replies 3 ·
Graduate A question about <The Quantum Theory of Fields> P.120
- Sam Wong
- · Replies 3 ·
Graduate Strong and weak interactions particles
- Orion78
- · Replies 5 ·
Undergrad Normalizing Data: Unknown Values
- g.lemaitre
- · Replies 2 ·
Graduate Gravity - relationship with Electromagnetism?
- azawah
- · Replies 3 ·
Graduate Modification to the wavefunction with application of an electric field
- solas99
- · Replies 2 ·
Graduate Heitler London Method: What Do S & T Mean?
- LagrangeEuler
- · Replies 2 ·