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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Undergrad What is the force that holds atoms together in a substance?
- arul_k
- · Replies 5 ·
Graduate Photons, particles and wavepackets
- jostpuur
- · Replies 102 ·
Can a Cat with Toast Defy the Laws of Physics in Quantum Mechanics?
- Remnant
- · Replies 5 ·
Graduate Is Quantum Chaos Real Despite Contradictions in Physics?
- Quantum River
- · Replies 12 ·
A Book on Quantum Physics by a Russian Author
- zapp
- · Replies 1 ·
Graduate Uncovering the Mystery: Can Atoms Produce Sound Waves in Quantum Physics?
- ShadowWorks
- · Replies 6 ·
Undergrad What do the basic notations in quantum physics mean?
- xusword
- · Replies 4 ·
Graduate How Do Photons Exhibit Wave Interference?
- free_electron
- · Replies 7 ·
Graduate Understand Shor's Algorithm & Quantum Fourier Transform
- michael879
- · Replies 2 ·
Graduate Commutator with r, p_r and angular momentum
- omyojj
- · Replies 3 ·
Graduate Time independent perturbation theory
- cks
- · Replies 1 ·
Graduate Photon Particle Wave or Straight?
- jobyts
- · Replies 5 ·
Graduate Is the Casimir Effect a Viable Source of Free Energy?
- Hippodag
- · Replies 17 ·
Graduate Gordon decomposition an right current
- OOO
- · Replies 15 ·
Graduate Pure Electron Diffraction Experiments
- lalbatros
- · Replies 3 ·
Graduate Quantum uncertainty and digital data
- paulselhi
- · Replies 1 ·
Graduate The use of Eigenvalues/function in QM
- AcidBathSDMF
- · Replies 9 ·
Graduate Field Quantization: Is "Forces Exchanged by Particles" a Deep Concept?
- Ratzinger
- · Replies 2 ·
Graduate Understanding the Concept of Instantaneous Potentials in Quantum Mechanics
- jostpuur
- · Replies 3 ·
Graduate Tracking or tagging a single atom in a gas
- learningphysics
- · Replies 7 ·
Undergrad Binding Energy in U-235 and daughter atoms
- physmurf
- · Replies 5 ·
Graduate What is the Significance of Substituting p for -p in the Klein-Gordon Equation?
- M. Kohlhaas
- · Replies 3 ·
Graduate Unique to within a constant factor?
- cks
- · Replies 4 ·
Graduate Free-Air Transmission and Quantum Effects?
- JDługosz
- · Replies 3 ·
Graduate Understanding the Probability Current J
- Rahmuss
- · Replies 7 ·
Graduate Quantum Decoherence & Measurement Time
- michael879
- · Replies 1 ·
Graduate Interference of two particles - how does it work?
- Anthus
- · Replies 10 ·
Graduate Time independent perturbation theory
- cks
- · Replies 3 ·
Graduate Entanglement and two electrons separated by the universe
- Alan J.
- · Replies 2 ·
Graduate Distinguishing between superposition and hidden information
- michael879
- · Replies 13 ·
Graduate Quantum Spin: Forgetting, Entanglement & Change
- Xori
- · Replies 4 ·
Graduate Physical Meaning of QM Expectation Values and other ?s
- Rahmuss
- · Replies 40 ·
Graduate Application of true randomness
- Xori
- · Replies 3 ·
Graduate How is electron formed? Why does it travel?
- Skhandelwal
- · Replies 36 ·
Undergrad Absorption Spectra - Questions & Answers from NZ High School Student
- kcodon
- · Replies 7 ·
Undergrad How to Explain Wave Phase Difference Physically?
- mcquarr
- · Replies 2 ·
Graduate Spin Matrix for Arbitrary Spin: A Closer Look
- captain
- · Replies 2 ·
Graduate How exactly does diagonalization work and how is it useful in qm?
- captain
- · Replies 2 ·
Graduate What is a Spinor? Is it the Coefficients of a State Ket?
- captain
- · Replies 8 ·
Graduate Propagation speeds in literature
- jostpuur
- · Replies 6 ·
Graduate Periodic potential: Bloch's theorem
- tim_lou
- · Replies 25 ·
Graduate Understanding Light Propagation for Quantum Field Theory
- captain
- · Replies 11 ·
Graduate What is renormalization and what does it do?
- captain
- · Replies 21 ·
Graduate P&S Chapter 2: Derivation of the KG Hamiltonian
- hellfire
- · Replies 10 ·
Undergrad Does Light Ever Travel Faster or Slower Than Speed C?
- journeytospace
- · Replies 1 ·
Graduate Exploring the SU(2)_L x U(1)_Y Gauge Field Theory of Electroweak Interaction
- americanforest
- · Replies 3 ·
Graduate Which Formula Correctly Represents the Kinetic Orbital Momentum of an Electron?
- C_Ovidiu
- · Replies 2 ·
Graduate Finding Einstein’s Hidden Variable
- RandallB
- · Replies 39 ·
Graduate Collapses against conservation laws
- jostpuur
- · Replies 13 ·
Graduate Quantum Mechanics and Determinism
- Proggle
- · Replies 19 ·
Graduate Simultaneous Entanglement of Particles: Frame of Reference Considerations
- idea2000
- · Replies 2 ·
Graduate Maxwell's Equations and Quantum Electrodynamics: A Comprehensive Overview
- idea2000
- · Replies 14 ·
Graduate Watching a wavefunction gradually collapse
- marcus
- · Replies 2 ·
Graduate Relativistic quantum mechanics
- iamquantized
- · Replies 5 ·
Graduate Why Hilbert Space is Necessary for Quantum Mechanics
- cesiumfrog
- · Replies 26 ·
Graduate How Does Chirality Impact the Dirac and Weyl Equations?
- iamquantized
- · Replies 2 ·
Graduate When is the Interaction representation used and why?
- DonnerJack
- · Replies 2 ·
Graduate DDCS: Understanding What it Measures
- TimNguyen
- · Replies 1 ·
Graduate Hamiltonian and energy momentum tensor
- captain
- · Replies 2 ·
Graduate Quantum Leap FTL: Is it Possible?
- yuiop
- · Replies 3 ·
Graduate Why Do We Need Wave Packets in Water Waves?
- hanson
- · Replies 6 ·
Graduate How Do Delta-Like Potentials Affect Normal Modes in a 1D Elastic String?
- Slaviks
- · Replies 1 ·
Graduate What are the Decay Modes of the Higgs? Recommendations for Further Reading
- americanforest
- · Replies 2 ·
Graduate Master Quantum Mechanics with Expert Tips and Tricks - Get Help Now!
- bender
- · Replies 11 ·
Graduate Schrödinger equation: macro level
- _Andreas
- · Replies 2 ·
Graduate Lagrangian and hamiltonian formalism
- captain
- · Replies 13 ·
Graduate Understanding the General Hamiltonian from the Schrödinger Equation
- joarb
- · Replies 7 ·
Graduate Two State System: QM Explained by Sakurai
- neelakash
- · Replies 4 ·
Undergrad How are the formulas in QM derived?
- arzie2000
- · Replies 10 ·
Graduate Does Photons bouce off eachother
- bassplayer142
- · Replies 4 ·
Undergrad Molecular switch and mobius molecules.
- melrose
- · Replies 5 ·
Graduate What are the two principles that prevent walking through a wall?
- pivoxa15
- · Replies 30 ·
Graduate Teleportion of particles in Vienna in 2000
- lboeckl
- · Replies 3 ·
Graduate Understanding Mediators and Contact Interactions in Quantum Mechanics
- eraemia
- · Replies 3 ·
Graduate Is Time Composed of Discrete Units in Physics Literature?
- teleport
- · Replies 5 ·
Graduate Quantum Erasure 9903047 - Issues
- zekise
- · Replies 17 ·
Graduate Another question on Schrodinger Equation
- Rade
- · Replies 1 ·
Graduate Quantized Field: Definition & Meaning
- captain
- · Replies 24 ·
Graduate Understanding the Relationship between Hamilton and Momentum Operators
- dream_chaser
- · Replies 2 ·
Graduate Wave Function Collapse: Why Does Observation Matter?
- tommyburgey
- · Replies 17 ·
Graduate Linearity of A Hermitian Operator
- buraqenigma
- · Replies 6 ·
Graduate Unraveling the Mysteries of Wavefunction Collapse and Quantum Entanglement
- Morga
- · Replies 13 ·
Graduate Answers of questions in mathematics of classical and quantum physics
- ercagpince
- · Replies 1 ·
Graduate Understanding Neutrino Helicity and Chirality: The Difference Explained
- JDługosz
- · Replies 12 ·
Graduate Q concerning Schrödinger’s equation
- JDługosz
- · Replies 6 ·
Graduate Energy required to create electron positon pair
- emanaly
- · Replies 2 ·
Graduate What Are Eigenfunctions and Superpositions in Quantum Measurement?
- jdstokes
- · Replies 3 ·
Graduate Why Does the Measurement Problem Terrify Physicists?
- tommyburgey
- · Replies 50 ·
Graduate Calculating the Stern Gerlach Angle in Magnetic Fields
- pivoxa15
- · Replies 3 ·
Graduate Learn Quantum Mechanics & Relativity: Can We Create Unlimited Energy?
- The Onion
- · Replies 11 ·
Graduate How small can we see with a STEM?
- jobyts
- · Replies 5 ·
Graduate Is Acceleration Quantization Valid in Quantum Mechanics?
- Sangoku
- · Replies 2 ·
Graduate Path integral in momentum representation
- jostpuur
- · Replies 22 ·
Graduate Are spinors just wavefunctions in the dirac field?
- captain
- · Replies 6 ·
Graduate Magnetic & electric fields in QM?
- pivoxa15
- · Replies 3 ·
Graduate Angular Momentum of 0 for Electrons in Ground Energy State
- pivoxa15
- · Replies 7 ·
Graduate Wave particle duality again(photons)
- madness
- · Replies 14 ·
Graduate Temporal overlap of light beams
- scarecrow
- · Replies 4 ·
Graduate QED Confinement: Will Charge be Confined if Alpha is Larger?
- carroza
- · Replies 3 ·
Graduate What Force Causes Electron Repulsion in the 1s State?
- pivoxa15
- · Replies 10 ·