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 Why do kinetic energy and position have an uncertainty relation?
- crysien
- · Replies 1 ·
Graduate What happens if two entangled particles are observed simultaneously?
- NetMage
- · Replies 2 ·
High School What is an observation or measurement?
- least_action
- · Replies 5 ·
Graduate Divergence of forward Coulomb scattering?
- Xela
- · Replies 6 ·
Graduate The normal and anomalous Zeeman effect
- Hymne
- · Replies 3 ·
Graduate What is the Relationship Between Superposition and Causality in Quantum Theory?
- Faxmachinen
- · Replies 7 ·
Graduate Is the Hard Sphere Collision Cross Section for 3-Body Systems Always Zero?
- brad sue
- · Replies 2 ·
Graduate Independent solutions of scalar wave equations
- Karthiksrao
- · Replies 3 ·
Undergrad Blog: The Fascinating Possibilities of 2D Objects in a 3D Universe
- -=Red=-
- · Replies 3 ·
Graduate Compton Effect vs. Photoelectric effect
- jordan41590
- · Replies 13 ·
Graduate Is quantum field theory really lorentz invariant?
- Sam_Goldberg
- · Replies 32 ·
Graduate Has anyone have seen this QFT book?
- prophetlmn
- · Replies 5 ·
Graduate Consciousness and the Interpretation of Quantum Mechanics
- limarodessa
- · Replies 11 ·
Graduate Why can't we use quantum bit entanglement for FTL information?
- zeromodz
- · Replies 58 ·
Graduate Energy of individual particles
- haael
- · Replies 1 ·
Tale of a Quantum Physicist in the year 2092
- Kevin_Axion
- · Replies 9 ·
Graduate Why do electrons disappear and reappear?
- JordanGo
- · Replies 5 ·
Graduate Can Atoms Be Moved and Imaged Despite Wave-Particle Duality?
- FeDeX_LaTeX
- · Replies 1 ·
Graduate How Do Bell States Compare to Total Spin States in Quantum Mechanics?
- nateHI
- · Replies 1 ·
Graduate What is the geometric phase and how does it relate to parameter space?
- mtak0114
- · Replies 5 ·
Graduate Quantum Teleportation: What Is It?
- nateHI
- · Replies 1 ·
Graduate Quantum physics concepts for fiction writing
- DrAnonymous
- · Replies 12 ·
Graduate Shouldn't Lagrangians be real (hermitian)?
- pellman
- · Replies 14 ·
Graduate Feynman integral over histories= over paths?
- nomadreid
- · Replies 6 ·
Graduate Calculating Time of Excited Electron in Ground State
- Darkmisc
- · Replies 1 ·
Graduate Why is Psi^2 not square rooted in Schroedinger's Equation?
- sujiwun
- · Replies 43 ·
Graduate In practice how do we prepare a desired quantum state?
- kof9595995
- · Replies 3 ·
Graduate What are the properties and potential uses of Bose-Einstein Condensate?
- Denver Dang
- · Replies 2 ·
Graduate Quantum mechanics theory is the most fundamental theory of nature
- zahero_2007
- · Replies 6 ·
Undergrad Whether light has mass? if yes what is the reason behind it?
- vidyanaik
- · Replies 17 ·
Graduate Form Factors of Elementry Particles
- chis
- · Replies 1 ·
Graduate Is there a general prescription for commutators?
- pellman
- · Replies 12 ·
Graduate Is A a Linear Operator and Hermitian in Quantum Mechanics Postulate 2?
- PAPquestions
- · Replies 2 ·
Graduate Diagonalize operator A by matrix S
- Abrar Quadery
- · Replies 1 ·
Graduate How to change unit of quantum to energy
- amelynn
- · Replies 2 ·
Graduate Relating the angular momentum with lapacian
- calculus_jy
- · Replies 7 ·
Graduate Why doesn't quantum tunneling allow particles to appear inside the barrier?
- NetMage
- · Replies 9 ·
Graduate Does a positron absorb a Photon?
- filegraphy
- · Replies 2 ·
Graduate How Can B Hatfield's Book Clarify QFT Through Solved Examples?
- sanko
- · Replies 3 ·
Graduate Books on quantum physics and string theory for non-specialists
- ivan86s
- · Replies 1 ·
Graduate Is Quantum Mechanics Understandable for a Ninth Grader?
- jswu1996
- · Replies 4 ·
Graduate Uncertainty Principle: How Does Position Depend on Photon Wavelength?
- zodas
- · Replies 5 ·
Graduate When does the wavefunction collapse?
- Sam_Goldberg
- · Replies 6 ·
Graduate Can quantum physics measure thoughts and emotions?
- illism
- · Replies 21 ·
Graduate Is Heisenberg principle applicable to a photon?
- fluidistic
- · Replies 3 ·
High School Light dying while traveling in space?
- JordanGo
- · Replies 10 ·
Graduate The speed of light, gravity, strong force, weak force
- LongOne
- · Replies 9 ·
Graduate Notation question for density matrix
- skynelson
- · Replies 4 ·
Graduate How to measure particle momentum from deflection angle without knowing position
- LarryS
- · Replies 18 ·
Graduate Expectation value of momentum in discrete states
- Heirot
- · Replies 7 ·
Graduate Can Quantum Computers Become a Reality?
- nishu1988
- · Replies 1 ·
Graduate Understanding Anti-Symmetric Tensor Expression
- ismaili
- · Replies 2 ·
Undergrad How Close Do Molecules Get When Two Objects Are Touching?
- PhanthomJay
- · Replies 8 ·
Graduate Why isn't the Pauli equation equivalent to the Schrodinger equation?
- pellman
- · Replies 8 ·
Graduate Can Quantum Entanglement Revolutionize Communication Technology?
- NetMage
- · Replies 30 ·
Graduate Can Non-Differentiable Space-Time Be Described Mathematically?
- nomadreid
- · Replies 15 ·
Graduate Zernike Polynomials Applied to Schrondinger's Equation
- sujiwun
- · Replies 1 ·
Graduate Calculating the Commutator of x and p - Problem Discussion
- lihurricane
- · Replies 3 ·
Graduate Computing the commutator [X̂², P̂²] gives a non-Hermitian result
- antibrane
- · Replies 5 ·
Graduate Electron Orbital: Learn About Probability and Bounds
- mishima
- · Replies 4 ·
Graduate Understanding Mixed States, Pure States
- skynelson
- · Replies 11 ·
Graduate Local Realistic in 4-Space Sliced to 3+1 Nonlocal
- inflector
- · Replies 2 ·
Graduate How Does the Exclusion Principle Affect Energy Levels in Electron Spin States?
- alle.fabbri
- · Replies 1 ·
Graduate What is a bilateral binary rotation?
- TimH
- · Replies 3 ·
Graduate Phase space and the quantum Liouville theorem
- skynelson
- · Replies 1 ·
Graduate How do antiparticles behave in the presence of gravity?
- AlexPeltser
- · Replies 6 ·
Graduate Contemplating an apparent paradox in the classic double slit experiment.
- mrspeedybob
- · Replies 13 ·
Graduate QHO ladder operator coefficient from Griffiths
- relativist
- · Replies 4 ·
Graduate Does black hole evaporation violate conservation of Baryon Number?
- JDługosz
- · Replies 5 ·
Graduate Are Static EM Fields in QED Composed of Virtual Photons?
- Ancient_Nomad
- · Replies 1 ·
Graduate Can Superposition Occur in Particles?
- Parbat
- · Replies 2 ·
Graduate Collapsing a wave function by measurement
- ricegrad
- · Replies 1 ·
Graduate Double slit experiment / Quantum interferometer
- Sherlock_H
- · Replies 9 ·
Graduate Quantum level working of IR sensor
- eptheta
- · Replies 30 ·
Graduate Continuous symmetries (Srednicki)
- LAHLH
- · Replies 1 ·
Graduate Where can I find good resources about quantum computing?
- NintendoKD
- · Replies 1 ·
Graduate Can Electrons and Photons Move in Curved Paths in Space?
- clm321
- · Replies 2 ·
Undergrad What is a joule second in physics?
- cnidocyte
- · Replies 3 ·
Graduate Sine waves and 4th derivative and 4 dimensional space-time relationship?
- ThePhysicsGuy
- · Replies 1 ·
Graduate Virtual Paricles and the Laws of Conservation
- filegraphy
- · Replies 3 ·
Graduate Is Background Independence Disproved by Wave Function Collapses?
- Kidphysics
- · Replies 2 ·
Graduate How long does does it take for the probability cloud of an electron to jump?
- Curyos
- · Replies 15 ·
Graduate When does entangled collapse happen?
- Eelco
- · Replies 8 ·
Graduate Dirac equation in one dimension
- wdlang
- · Replies 6 ·
Graduate Does the New Quantization Method Redefine Time Symmetry in Quantum Mechanics?
- naturale
- · Replies 63 ·
Graduate Proving Schwinger's Identity: A Challenge for Mathematicians
- maverick280857
- · Replies 1 ·
Graduate Entanglement and identical particles
- relativityfan
- · Replies 2 ·
Graduate Order of operations with bras and kets
- skynelson
- · Replies 5 ·
Graduate Classical Version of Vacuum Polarization
- ApplePion
- · Replies 5 ·
Graduate Heat transfering from Cold to Hot?
- azaharak
- · Replies 1 ·
Graduate Do we know for sure if gravity exists in quantum states?
- Coldcall
- · Replies 32 ·
Graduate Understanding Fields in Quantum Mechanics: Electrons, Waves, & Particles
- gk007
- · Replies 5 ·
Graduate What is the meaning of a ket in quantum mechanics?
- kweierstrass
- · Replies 5 ·
Graduate Why are S² and Sz constant in time if H is diagonal in their basis?
- Cosmossos
- · Replies 2 ·
Graduate Relation between Quantum Mechanics and Temperature
- leoneri
- · Replies 3 ·
Graduate Strong force strength, quark decays, virtual particles, and quantum entanglement
- etamorphmagus
- · Replies 8 ·
Graduate Is the spin-statistics theorem proven or postulated?
- jostpuur
- · Replies 5 ·
Photos of Matter Particles - Get Links Here
- David Burke
- · Replies 26 ·
Graduate de Broglie wavelength explanation for VLSI students
- INS-ANI
- · Replies 11 ·
Undergrad What does 'orthogonal' mean for vectors?
- cheungyl
- · Replies 2 ·