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 Harmonic Oscillator and Total Energy
- RedDanger
- · Replies 2 ·
Graduate The relation between atoms' kinetic energy and the energy levels
- bentzy
- · Replies 5 ·
Graduate Bob makes a local gauge trans., can Alice undo with some fields?
- Spinnor
- · Replies 2 ·
Graduate LS coupling and calculating the total angular momentum
- cooper607
- · Replies 1 ·
Graduate Zero point energy in thermal noise spectrum?
- jasonRF
- · Replies 4 ·
Graduate Callen & Welton calculation of power of absorption
- Jano L.
- · Replies 4 ·
Graduate Why does the integral of the Yukawa potential converge for q/alpha >= 1?
- conana
- · Replies 4 ·
Graduate Easy question on conformal transformations
- physicus
- · Replies 6 ·
Graduate Time evolution of operators as projectors - confusion
- Loro
- · Replies 6 ·
Undergrad Is the Electromagnetic Spectrum non-continuous?
- Eriance
- · Replies 7 ·
Undergrad Understanding Optical Modes Without the Jargon
- Eriance
- · Replies 2 ·
Graduate Why can't we define a time related operator?
- fluidistic
- · Replies 30 ·
Graduate What Insights Do Paul Dirac's Lost 1975 Lectures Offer on Quantum Mechanics?
- DiracPool
- · Replies 1 ·
Graduate Math suggestions for learning QM
- NegativeDept
- · Replies 4 ·
Graduate Help with Quantum Eraser experiments
- ldunscombe
- · Replies 3 ·
Graduate Unified Field Theory - Consciousness
- StevenGuy
- · Replies 4 ·
Undergrad Perturbation Theory for a Hamiltonian
- Cazicami
- · Replies 2 ·
Graduate About the Lie algebra of our Lorentz group
- Kontilera
- · Replies 2 ·
Graduate The addition of the wave functions for a system
- ashutoshsharma
- · Replies 3 ·
Graduate Unified Field Theory - Consciousness
- StevenGuy
- · Replies 1 ·
Graduate Space as not empty, non-locality, conceptual implications?
- Curious45
- · Replies 12 ·
Graduate Spin-1/2 Particle in Superposition B Field: Probability and Interactions
- port31
- · Replies 1 ·
Graduate Full Rundown of Light as a Quantum
- 42Physics
- · Replies 4 ·
High School Why do all particles have a wavelength?
- waterliyl
- · Replies 6 ·
Graduate Normalization of SU(N) Group Generators
- LayMuon
- · Replies 10 ·
Graduate Matter vs Antimatter: Understanding the Disproportion
- GuRuPhysicsGuy
- · Replies 3 ·
Undergrad Derving compton effect formula - SIMPLY
- CV101
- · Replies 5 ·
Graduate Eigenvalues of the position operator
- fluidistic
- · Replies 10 ·
Graduate Quantum mechanical derivation of Einstein's equations
- Barnytron
- · Replies 4 ·
Graduate Curved Dirac equation, Spin connection
- pleasehelpmeno
- · Replies 6 ·
Graduate What Are We Really Measuring in Quantum Mechanics?
- friend
- · Replies 4 ·
Graduate Quick Matrix Element Question using Hermitian Operator
- starryskiesx
- · Replies 6 ·
Graduate Dirac equation continuity issue
- raymo39
- · Replies 1 ·
Graduate Does the ground state wave function in QM problems have any zeros?
- LagrangeEuler
- · Replies 15 ·
Graduate Quantum Temperature Relations?
- evanlee
- · Replies 5 ·
Graduate It would take a computer bigger than the universe to solve 11 electron
- maverick_starstrider
- · Replies 8 ·
Graduate Question about H atom orbitals
- RedCliff
- · Replies 11 ·
Graduate Wave Function Units: |ψ(x,t)| - Dimensionless?
- tomlry
- · Replies 5 ·
Graduate Unifying Gravity and Quantum Mechanics: The Role of Spin-2 Fields
- faen
- · Replies 16 ·
Introducing V-Gauge & L-Gauge: A Brief Introduction
- ENDLESSYOU
- · Replies 1 ·
Graduate Intuition for symmetry currents
- electroweak
- · Replies 3 ·
Graduate Understanding Spin: What is it & How is it Measured?
- PhysicsDad
- · Replies 18 ·
Graduate Knowledge and understanding of QM
- LagrangeEuler
- · Replies 9 ·
Graduate Some weird integration by parts to derive momentum operator
- 71GA
- · Replies 10 ·
Graduate Q's regarding atomic energy levels (1&2) and orbitals (1)
- bentzy
- · Replies 8 ·
Graduate Can Two Electrons in an Atom Share the Same Quantum Numbers?
- i know it all
- · Replies 4 ·
Graduate Does the adjoint of an outer product equal to itself?
- onelastdance
- · Replies 2 ·
Graduate Measurements in Quantum mechanics
- QuantumMoose
- · Replies 4 ·
Graduate Preferred direction about hydrogen atom
- ENDLESSYOU
- · Replies 5 ·
Graduate Changing the Hamiltonian to a new frame of reference
- AxiomOfChoice
- · Replies 1 ·
Graduate What are the recommended books for learning the basics of quantum mechanics?
- altaf123
- · Replies 7 ·
Graduate Quantum Computing Help: Function Gates & Matrix Representation
- pleasehelpmeno
- · Replies 1 ·
Graduate Preparing for Quantum Mechanics, please suggest me good books.
- pahtakus
- · Replies 1 ·
Graduate Dirac Equation in (-,++++) Notation
- pleasehelpmeno
- · Replies 1 ·
Graduate Is predicting the future with Quantum Erasure possible?
- tokyoburns
- · Replies 3 ·
Graduate Quantum Fluctuations: Virtual Photon in Feynman Diagrams
- NATURE.M
- · Replies 2 ·
Graduate A question regarding the Power series method of solving the QHO
- klawlor419
- · Replies 2 ·
Graduate How Are General Relativity and Quantum Mechanics Connected?
- San K
- · Replies 9 ·
Graduate Standing Waves in Bohr's Circular Orbit: Interference Explained
- roshan2004
- · Replies 1 ·
Graduate Quantum Mechanics, Potential Step
- M. next
- · Replies 1 ·
Graduate Phase of photon from excited atom
- johne1618
- · Replies 5 ·
Graduate The photon, time and entropy
- Curious45
- · Replies 16 ·
Graduate Understanding the Differences Between Integer and Fractional Spin Values
- jldibble
- · Replies 5 ·
Graduate Casimir effect, where is the energy loss?
- ArthurDent
- · Replies 3 ·
Graduate Is matrix mechanics better suited for relativity than wave mechanics?
- snoopies622
- · Replies 20 ·
Graduate SU(2) symmetry of the ammonia molecule?
- "pi"mp
- · Replies 9 ·
Graduate Fluctuation-Dissipation Theorem and QED
- stevendaryl
- · Replies 4 ·
Graduate Are grand unified theories the solution to the problem of multiple fields?
- San K
- · Replies 4 ·
Graduate Is quantum entanglement - Continuous?
- San K
- · Replies 1 ·
Graduate Is the Displacement Operator Tψ(x)=ψ(x+a) Hermitian?
- Rude
- · Replies 5 ·
Undergrad Bohr's postulate: Electron not losing energy
- SweatingBear
- · Replies 9 ·
Graduate Is the electron field a real thing?
- CraigH
- · Replies 14 ·
Graduate Contracting operators in Wick diagrams
- jackson1
- · Replies 8 ·
Graduate Arguments in favour of the fair sampling assumption
- gespex
- · Replies 8 ·
Graduate Spin,orbital and total angular momentum
- ShayanJ
- · Replies 2 ·
Graduate String tension for quark anti-quark binding
- Chain
- · Replies 2 ·
Graduate Deriving Dirac Hamiltonian with (+,---) Metric Signature
- pleasehelpmeno
- · Replies 4 ·
Undergrad Recommended math for 1st class in quantum
- Cdg8676
- · Replies 7 ·
Graduate Momentum and wave vector representation
- LagrangeEuler
- · Replies 4 ·
Graduate Is my understanding of EM field quantization correct?
- HomogenousCow
- · Replies 1 ·
Undergrad What is a Photon? - Mass, Momentum, Speed & Wavelength
- smatik
- · Replies 2 ·
Graduate Multiple Dimensions in Quantum Theories
- lch7
- · Replies 4 ·
- Poll
Graduate What do violations of Bell's inequalities tell us about nature?
- bohm2
- · Replies 278 ·
Graduate What exactly is a quantum field
- HomogenousCow
- · Replies 3 ·
Graduate Can You Explain the One-electron Universe ?
- noname2020x
- · Replies 2 ·
Graduate What Happens to Boson Distribution in Long-Lived Non-Equilibrium States?
- Boltzmann2012
- · Replies 9 ·
Graduate When does quantum gravity become important?
- HomogenousCow
- · Replies 9 ·
Graduate Question on spin-zero Feynman rules
- Einj
- · Replies 1 ·
Graduate Has quantum physics proven that thoughts become reality?
- Goosejournals
- · Replies 6 ·
Graduate Spontaneous symmetry breaking: How can the vacuum be infinitly degener
- youngurlee
- · Replies 4 ·
Graduate Understanding Noether's Theorem in Quantum Field Theory - K. Huang's Explanation
- jtceleron
- · Replies 1 ·
Graduate Understanding the Einstein Notation for Derivatives in Quantum Field Theory
- spacelike
- · Replies 3 ·
Graduate Diffraction of individual photons
- gespex
- · Replies 5 ·
Graduate Why don't scalar fields propagate superluminally?
- ramparts
- · Replies 2 ·
Graduate What is the Quantum Force and How Does it Govern Atomic Vibrations?
- somebody314
- · Replies 14 ·
Graduate Quantum mechanics without spacetime
- math_04
- · Replies 6 ·
Graduate Discreet Quanta versus the Continuous Electromagnetic Spectrum
- Mcellucci
- · Replies 4 ·
Graduate Are entangled particle outcomes determined by the unit circle?
- rlduncan
- · Replies 11 ·
Graduate State space of QFT, CCR and quantization, and the spectrum of a field?
- youngurlee
- · Replies 1 ·
Graduate Shrodinger's Waves, and Heisenberg's Matrices
- Leucippus
- · Replies 4 ·