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 Why do we need a normalisation constant for wavefunctions?
- Molar
- · Replies 4 ·
Graduate Does Conscious Observation Influence Quantum State Collapse?
- stfaivus
- · Replies 9 ·
Graduate Is an electron considered a singularity by some physicists?
- lightoflife
- · Replies 5 ·
Graduate QM notes with entanglement, Bell, decoherence, etc.
- Lapidus
- · Replies 5 ·
Graduate Superposition / Probability Wave - frame rate problem?
- Quinnjin
- · Replies 17 ·
Graduate How to Graph an Electron Orbital?
- Ryan Reed
- · Replies 5 ·
Graduate Can this be explained using statistical mechanics only?
- Christian Grey
- · Replies 1 ·
Graduate Getting to Grips with Dirac Notation: A Stuck Student's Story
- leonmate
- · Replies 5 ·
Graduate Lorentz transformation of a scalar field
- soviet1100
- · Replies 2 ·
Graduate Question on quantum entanglement
- headneophyte
- · Replies 3 ·
Graduate How to Relate \(\frac{1}{m^2}\lambda J^4\) to Figure 1.7.1 in Zee's QFT Book?
- chern
- · Replies 7 ·
Graduate Understanding Spin in Quantum Mechanics: The Mystery of Schrodinger's Cat
- xXDEMAMAXx
- · Replies 2 ·
Undergrad Implications of the Delayed Choice Quantum Eraser
- Kansas_Cowboy
- · Replies 49 ·
Graduate Dirac Equation - Analytic Solution?
- LarryS
- · Replies 5 ·
Graduate Are Hilbert spaces still necessary?
- burakumin
- · Replies 11 ·
Graduate Ground state and stationary states
- Einstein Jr.
- · Replies 2 ·
Graduate What actually happens when light meets a surface(QED or QM)?
- Christian Grey
- · Replies 2 ·
Graduate Do Spin-Orbit Interactions change the Orbital of an Electron
- Ryan Reed
- · Replies 2 ·
The Dancing WuLi Masters: Fact or Fiction?
- A AM ARYA
- · Replies 5 ·
Undergrad Introduction to relativistic quantum mechanics and maybe QFT
- dsatkas
- · Replies 78 ·
Undergrad Understanding STM Microscopes: The Role of Voltage in Physics
- Nav
- · Replies 1 ·
Graduate What operators are involved in angular momentum states?
- leonmate
- · Replies 5 ·
Graduate Is DCQE erasing information or resetting the system?
- midix
- · Replies 10 ·
Undergrad Schrodinger's cat, the multiverse and isolated systems
- quantumfunction
- · Replies 61 ·
Graduate Hanbury Brown and Twiss effect explanation
- inkskin
- · Replies 28 ·
Graduate Can Non Realism = Non Deterministic Hidden Variable Theory
- Point Conception
- · Replies 33 ·
Graduate Is quantum programming really possible?
- JakesDev96
- · Replies 2 ·
Graduate Thermal Emission and Scattering (Mie or Rayleigh)
- K41
- · Replies 3 ·
Graduate Comments - Some Useful Integrals In Quantum Field Theory
- bhobba
- · Replies 2 ·
Graduate Macroscopic observation of interference?
- Feeble Wonk
- · Replies 10 ·
High School How does quantum tunneling occur without an observer?
- Juraj
- · Replies 114 ·
High School Do each point in solid have a special energy state?
- persia77
- · Replies 5 ·
Graduate Measurement operator for Chsh experiment
- jk22
- · Replies 1 ·
Graduate Quantum Threshold Scheme , no cloning theorem
- Shivam Saluja
- · Replies 1 ·
Graduate Electron-Electron Interaction & Photon-Electron Interaction?
- CAH
- · Replies 16 ·
Graduate Does the Spin of an Atom's Electrons Affect its Orbital Configuration?
- Ryan Reed
- · Replies 10 ·
Graduate What's the universe collapsing into?
- friend
- · Replies 48 ·
Graduate Is there a difference between an electron anti-neutrino and a positron neutrino?
- Mr. Mackey
- · Replies 1 ·
Undergrad Is the Planck length the smallest measurable length?
- Danyon
- · Replies 9 ·
Graduate Can (almost) all the properties be entangled
- whatdoido
- · Replies 7 ·
Graduate Is this statement about the Uncertainty Principle correct?
- Vannay
- · Replies 4 ·
Graduate Dimensional analysis on equation including scattering length
- KFC
- · Replies 6 ·
Graduate Does CP Violation Influence Entropy Through Altered Thermal Radiation?
- tzimie
- · Replies 6 ·
High School How Does Quantum Entanglement Not Violate Causality?
- TMO
- · Replies 28 ·
Graduate Double slit experiment - bias towards normal pattern?
- MJE34
- · Replies 15 ·
Graduate Commutator of creation/annihilation operators (continuum limit)
- soviet1100
- · Replies 2 ·
Graduate Weinberg 5.9.34: Is Charge Conservation Resolved?
- stedwards
- · Replies 2 ·
Graduate How to Generate a 3D Grid for Tight Binding Wave Functions?
- wellery
- · Replies 1 ·
Graduate Double slit experiment and mirrors
- m_robertson
- · Replies 1 ·
Graduate Can Electron Teleportation Occur in Small Time Intervals?
- Juraj
- · Replies 3 ·
Graduate Sterman's QFT - 2.7b (on functional derivatives)
- ddd123
- · Replies 3 ·
Graduate What is the accepted interpretation of the quantum nature of matter?
- hellsteiger
- · Replies 47 ·
Graduate QM and Crook's Fluctuation Theorem
- Jimster41
- · Replies 6 ·
Graduate The Significance of the Hermition Conjugate in Wave Functions
- deependra1003
- · Replies 8 ·
Graduate Kim's delayed choice quantum eraser -- Is it really delayed?
- andrewkirk
- · Replies 38 ·
Graduate Delayed choice measurement subsequent analysis
- Cobalt101
- · Replies 1 ·
Graduate How is speed of light in glass defined in QM/QED?
- LarryS
- · Replies 3 ·
Undergrad Empty space in atoms vs orbits
- skepticwulf
- · Replies 11 ·
Graduate Can hidden variable theories assign values to observables?
- naima
- · Replies 10 ·
Graduate Understanding Eigenfunctions and Operators in Quantum Mechanics
- D_Cross
- · Replies 16 ·
Graduate Understanding Slater Determinants Using He 1s2 & 1s12s1
- fricke
- · Replies 6 ·
Graduate How different can quantum vacuums be?
- quantumfunction
- · Replies 2 ·
Graduate Relationship between measurement and temperature
- Jimster41
- · Replies 1 ·
Graduate Raman Spectroscopy: Why Peaks of Stokes Higher than Anti-Stokes?
- fricke
- · Replies 3 ·
Graduate Resolution to the Delayed choice quantum eraser?
- Gothican
- · Replies 60 ·
Graduate Polarisation destroying interference pattern for double slit
- andrewkirk
- · Replies 3 ·
Graduate Experimental verification of matter waves?
- Sturk200
- · Replies 12 ·
Graduate Entanglement Geometry: Extra-Dimensional Spacetime or Wave Nature?
- Rosen
- · Replies 11 ·
Graduate Can We Track a Photon's Path in the Double Slit Experiment?
- JoshuaMandlazi
- · Replies 12 ·
Graduate Does classical vacuum permittivity have a QM analog?
- LarryS
- · Replies 12 ·
Graduate Kronecker function products - matrix format
- hermish
- · Replies 3 ·
Graduate What if Planck Constant is Zero? Effects in Quantum Explored
- fricke
- · Replies 9 ·
Insights Some sins in physics didactics - comments
- vanhees71
- · Replies 203 ·
Graduate Do momentum and kinetic energy operators always commute for a free particle?
- fricke
- · Replies 6 ·
Graduate How to estimate the power of laser beam
- KFC
- · Replies 1 ·
Graduate Decoherence and double-slit with eraser
- VALENCIANA
- · Replies 1 ·
Graduate Particle in a box with the finite depth
- fricke
- · Replies 2 ·
Graduate About wavepacket unit and probability
- KFC
- · Replies 49 ·
Graduate Bra's and Ket's independent of basis?
- Nathew
- · Replies 2 ·
Graduate How 2 particles become entangled?
- lightarrow
- · Replies 28 ·
Graduate QED renormalization in Peskin's
- Trifis
- · Replies 10 ·
Graduate Exact solutions for potential V=(|x|-a)^2
- Kurret
- · Replies 2 ·
Graduate Is Light a Particle or a Wave According to Quantum Theory?
- KiNGGeexD
- · Replies 51 ·
Graduate Wavefunction collaps past/future effect
- batmanmg
- · Replies 3 ·
Graduate What is QCD (quantum chromodynamics)?
- Alfie Simpson
- · Replies 2 ·
Graduate What is the Entropy of a System with Doubly Degenerate Energy Level?
- Philip Wood
- · Replies 4 ·
Graduate Double slit experiment with 2 detectors
- Splizard
- · Replies 3 ·
Graduate What Does the Linear Combination of Ψn Bases Mean for Quantum States?
- Molar
- · Replies 11 ·
Graduate Probability function being imaginary?
- Ananthan9470
- · Replies 2 ·
Graduate What is the equivalence to the free field in the interaction picture?
- naima
- · Replies 1 ·
Graduate Deduction of the action of this unitary on the wavefunction
- julian
- · Replies 5 ·
Graduate Electron wave function in quantum cascade laser?
- Nav
- · Replies 3 ·
Graduate Pauli Exclusion Principle: how does an electron know its state?
- Mr Wolf
- · Replies 10 ·
Graduate What if elementary particles do have size
- Nav
- · Replies 3 ·
Graduate QM & Consciousness: Has Theory Been Disproven?
- Pete Hammand
- · Replies 85 ·
Graduate Why there is mod 2pi in Berry phase?
- mmssm
- · Replies 8 ·
Graduate Why are quantum computers faster than classical computers?
- VforVendetta
- · Replies 38 ·
Graduate Particle in a Box: Degeneracy Explained
- Joydeep Munshi
- · Replies 4 ·
Graduate Understanding Electron Movement with Heisenberg's Uncertainty Principle
- jaydnul
- · Replies 6 ·
Graduate Principal quantum number n is an integer, Why?
- TAMAL DEY
- · Replies 6 ·