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 Parametrization of uniformly distributed n dimensional states
- Arubaito
- · Replies 14 ·
Graduate Are Bose Eistein Condensates Classical Objects
- bhobba
- · Replies 30 ·
Graduate What Misconceptions Exist in What The Bleep Do We Know?
- WalkTheWorld
- · Replies 2 ·
Graduate Collection of foundational papers?
- jjustinn
- · Replies 5 ·
Undergrad The strength of electromagnetism in an atom?
- 42Physics
- · Replies 3 ·
Graduate Time independant perturbation - Difficulty understanding derivation
- omoplata
- · Replies 4 ·
Graduate At what point does gravity become incompatible with QM?
- Cody Richeson
- · Replies 7 ·
Graduate Probability of finding electron.
- nil1996
- · Replies 1 ·
Graduate Spin singlets and the Bell states
- VantagePoint72
- · Replies 3 ·
Graduate Finite Hilbert Space v.s Infinite Hilbert Space in Perturbation Theory
- ck00
- · Replies 7 ·
Graduate Initial wave function for an electron in a magnetic field
- Syrius
- · Replies 3 ·
Graduate What makes virtual particles separate and come together?
- friend
- · Replies 4 ·
Graduate Does photon exist without velocity c ?
- cooper607
- · Replies 1 ·
Graduate HUP and good quantum numbers that commute
- Salman2
- · Replies 2 ·
Undergrad Do electrons need specific energies to excite electrons
- GeneralOJB
- · Replies 4 ·
Graduate How can the expression for orthonormal states be simplified?
- omoplata
- · Replies 2 ·
Graduate Accurate equations vs. accurate models in QM
- jon4444
- · Replies 13 ·
Graduate Dr. Plato A Lucien Hardy called and
- Charles Wilson
- · Replies 3 ·
Graduate How can a ground state of free particles have entanglement?
- nonequilibrium
- · Replies 3 ·
Graduate Tattoo featuring quantum physics
- BslBryan
- · Replies 27 ·
Graduate Does metronome synchronization have anything/nothing to do with QM/QE?
- San K
- · Replies 1 ·
Graduate What is the correlation between photon events in space and time?
- Scipio
- · Replies 4 ·
Graduate Photographing Atoms: Closest and Best Photos of Molecules
- Double-Slit
- · Replies 16 ·
Graduate How do we know that wave f. is the eigenfunction of an operator H?
- 71GA
- · Replies 8 ·
Graduate Is a static EM field made of photons? Do they move at c?
- JohnRood
- · Replies 23 ·
High School Understanding Newton's Ring Experiment & Why Rings are Circular
- Mannu136
- · Replies 1 ·
Graduate Mass of a permanent magnet levitating a superconductor?
- keelejak
- · Replies 1 ·
Graduate Is the wave function, an unreal tool, to partially model a real interaction?
- San K
- · Replies 4 ·
Graduate Peskin Schroeder page 30 eq 2.54
- silverwhale
- · Replies 17 ·
Graduate Problem understanding Wigner's classification
- jinawee
- · Replies 14 ·
Graduate Other ways to create an interference pattern?
- SonOfBruze
- · Replies 11 ·
Graduate Total momentum operator in peskin/schroeder
- copernicus1
- · Replies 1 ·
Graduate Difficulties in understanding Brownian motion.?
- leppad
- · Replies 5 ·
Graduate An eigenstates, eigenvectors and eigenvalues question
- pigletbear
- · Replies 3 ·
Graduate Particle in magnetic field, classical and quantum view
- Nemanja989
- · Replies 5 ·
Graduate PBR Theorem: Abandon Quest for Ontic Models of QM?
- jk22
- · Replies 9 ·
Graduate Path Integrals Harmonic Oscillator
- Wislan
- · Replies 1 ·
Graduate What is the energy-time uncertainty relationship in quantum mechanics?
- g.lemaitre
- · Replies 1 ·
Graduate Feynman rules from Yang-Mills lagrangian
- center o bass
- · Replies 7 ·
Graduate Proper form of schrodinger's equation?
- unchained1978
- · Replies 3 ·
Graduate The use of different bases in QFT
- unchained1978
- · Replies 1 ·
Graduate Spin-Orbit Coupling: A Bohr-Orbital Model?
- Fightfish
- · Replies 2 ·
Graduate Equivalence of differential operator terms in action
- Mithra
- · Replies 2 ·
Graduate Sakurai page 196: Orbital angular momentum as rotation generator
- omoplata
- · Replies 2 ·
Graduate Bra-ket notation and qubit issue.
- Relative0
- · Replies 3 ·
Graduate Does quantization mean there are only so many colors?
- Stonius
- · Replies 8 ·
Graduate Any Conceptual Underpinning for Partial Reflection of Light (QED)
- jon4444
- · Replies 1 ·
Graduate Electron LOSING energy to the quantum vacuum?
- Pseudo Epsilon
- · Replies 15 ·
Graduate Gauge transformation of Yang-Mills field strength
- center o bass
- · Replies 3 ·
Graduate From statistical to ontological: uncertainty principle
- nomadreid
- · Replies 11 ·
Graduate Hydrogen atom. Simple question I think.
- LagrangeEuler
- · Replies 3 ·
Graduate Argument for quantum indeterminism
- alpha358
- · Replies 8 ·
Graduate Hawking Radiation and Shrinking Black Holes
- dsmikk
- · Replies 13 ·
Graduate Is the wigner D function a representation of SO(3)?
- Yoran91
- · Replies 1 ·
Graduate Proof for commutator $[\hat{H},\hat{a}] = - \hbar \omega \hat{a}
- 71GA
- · Replies 8 ·
Graduate Photon Polarization: Linear vs Circular & Time-Dependent States
- wotanub
- · Replies 1 ·
Graduate Where did they come from and when?
- Pseudo Epsilon
- · Replies 3 ·
Graduate Exploring the Fundamental Postulates of QM: Are They Truly Ad-Hoc and Strange?
- HomogenousCow
- · Replies 70 ·
Undergrad Determining the Weight of a simple string
- Sekonda
- · Replies 1 ·
Graduate Quantum internet running at Los Alamos National Labs
- Greg Bernhardt
- · Replies 2 ·
Graduate How to derive or verify Hartree product?
- gofightwin
- · Replies 1 ·
Graduate Sakurai page 181: Time evolution of ensembles
- omoplata
- · Replies 2 ·
Graduate Electrons viewed in real time for the first time ever
- zincshow
- · Replies 1 ·
Graduate Harmonic solutions as Riemannian oscillators ?
- glengarry
- · Replies 3 ·
Graduate What is the maximum energy density of EM radiation and its effects?
- easyrider
- · Replies 3 ·
Graduate Fock space and the Brillouin condition
- beans73
- · Replies 1 ·
Graduate For a electron orbiting around the nucleus, why must it be in phase?
- Outrageous
- · Replies 7 ·
Graduate Can a Photon be thought of as a bit?
- hankaaron
- · Replies 7 ·
Graduate Uncertainty principle regarding a narrow optical fibre?
- bcrelling
- · Replies 5 ·
Graduate Meaning of σ & π Bonds in Molecules Quantum Mechanics
- hokhani
- · Replies 5 ·
Graduate Past Uncertnity: Can We Calculate It?
- DrZoidberg
- · Replies 10 ·
Graduate How can an asymptotic series give accurate results as in QED?
- shunra
- · Replies 2 ·
Graduate Virtual particales and black holes.
- medgalis
- · Replies 3 ·
Graduate Quantum objects and the law of identity over time
- glengarry
- · Replies 14 ·
Graduate Why Does Planck Time Exist?
- Slem
- · Replies 16 ·
Graduate Vacuum expectation value and lorenz (trans) invariance
- center o bass
- · Replies 5 ·
Graduate Forming Hydrogen wave functions with real spherical harmonics
- dipole
- · Replies 5 ·
Graduate Understanding the Tensor Product Space: What is the Motivation Behind It?
- Yoran91
- · Replies 6 ·
Graduate Self-adjointness of H, particular example
- fluidistic
- · Replies 18 ·
Graduate What Challenges Arise in QM/QFT with Non-Separable Hilbert Spaces?
- Bobhawke
- · Replies 12 ·
Graduate Question about Interference Patterns in Kim Delayed Choice Eraser
- msumm21
- · Replies 3 ·
Graduate Texas A&M Photonless Communication
- wheelersbit
- · Replies 9 ·
Graduate Quantum physics explanation problem
- hawkdron496
- · Replies 2 ·
Graduate Proof of second quantization operators
- Tilde90
- · Replies 8 ·
Graduate Understanding the Use of Controlled Not Gates in Quantum Computing
- ShayanJ
- · Replies 2 ·
Graduate The uncertainty principle and the measurement postulate
- la6ki
- · Replies 5 ·
Undergrad Is Zero Point Energy Truly Unattainable?
- JayJohn85
- · Replies 4 ·
Graduate Debye model in Statistical Physics
- M. next
- · Replies 2 ·
Graduate Quantum Entanglement, and Information.
- Dewgale
- · Replies 6 ·
Graduate Sakurai page 91: Simple Harmonic Oscillator, trouble understanding
- omoplata
- · Replies 3 ·
Graduate Understanding the renormalization group
- center o bass
- · Replies 5 ·
Graduate Renormalization procedure (Peskin and Schroeder)
- center o bass
- · Replies 3 ·
Graduate QM: Neutrino Polarization - Oscillation & Mass Polarization
- wotanub
- · Replies 6 ·
Graduate What do creation operators measure?
- jjustinn
- · Replies 1 ·
Graduate Spontaneous parametric down-conversion and energy-momentum cons.
- Spinnor
- · Replies 14 ·
Graduate [Double slit experiment] if we look back at slit, what we'll see?
- Chitose
- · Replies 16 ·
Graduate General relativity and quantum mechanics
- safachag
- · Replies 4 ·
Graduate Measuring effective (renormalized) coupling constants
- center o bass
- · Replies 4 ·
Graduate Landau-Lifschitz : Photon helicity states
- Takeshin
- · Replies 6 ·
Graduate Sakura page 85: how to do this proof?
- omoplata
- · Replies 11 ·