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 Detection bias in Bell tests and local realism viability
- DrChinese
- · Replies 12 ·
Graduate The magnetic field of a photon
- Identity
- · Replies 16 ·
Graduate Hermitian conjugation and conserved current in the Dirac equation
- gheremond
- · Replies 2 ·
Graduate MUST the variation of the action be zero?
- friend
- · Replies 27 ·
Graduate Resources for bound state calculations in quantum field theory
- fermi
- · Replies 3 ·
Graduate Probability of superposition of states
- lavster
- · Replies 1 ·
Graduate Scalar product of many-particle states?
- Gerenuk
- · Replies 3 ·
Graduate What chronology of Bell inequalities testing ?
- limarodessa
- · Replies 1 ·
Graduate Massless Particles: Carrying Momentum?
- matt_crouch
- · Replies 4 ·
Undergrad Do gravitons exhibit Doppler shift?
- kevinrichart
- · Replies 3 ·
Graduate Integrating product of delta functions
- alejandrito29
- · Replies 24 ·
Graduate Superposition of states of the hydrogen atom
- lavster
- · Replies 15 ·
Graduate Can the Double Slit Experiment be Performed with Single Particle Detection?
- εllipse
- · Replies 16 ·
Graduate Momentum Operator Construction
- pzona
- · Replies 3 ·
Graduate Are particles fundamental or just useful approximations?
- kote
- · Replies 12 ·
Graduate Why Does Term Not Appear in Classical Lagrangian for Spin 1/2 Electrodynamics?
- dextercioby
- · Replies 2 ·
Graduate What is Spin Hall effect and quantum hall effect
- yashar
- · Replies 1 ·
Graduate Why can perturbed wavefunctions be written as combinations of unperturbed eigenfunctions?
- Niles
- · Replies 30 ·
Graduate Time-energy uncertainty principle
- Phyisab****
- · Replies 20 ·
Graduate Schrodingers equation for the hydrogen atom.
- lavster
- · Replies 2 ·
Graduate History of the Taylor-Phipps version of the Stern-Gerlach experiment
- transience
- · Replies 2 ·
Graduate Symmetric and Anti-Symmetric Wavefunctions
- Ed Quanta
- · Replies 28 ·
High School Entry level quantum mechanics books for non-scientists
- Emc²
- · Replies 15 ·
Graduate How can objects have wavelengths?
- engi2013
- · Replies 9 ·
Graduate Detection of a non-interacting particle
- DrFaustus
- · Replies 9 ·
Graduate Bloch sphere model for many spins?
- Gerenuk
- · Replies 1 ·
Graduate Can quantum mechanics concepts model economic systems?
- ninar
- · Replies 6 ·
Graduate Alain Aspect's Experiment: Investigating Non-locality and Entangled Photons
- Neo_Anderson
- · Replies 20 ·
Graduate Wave function collapse and the statistical nature of quantum states
- LAncienne
- · Replies 26 ·
Graduate Entanglement in scattering processes
- limarodessa
- · Replies 5 ·
Graduate Charmonium Mass Estimation: Trial Wavefunction for Variational Method
- starbud27
- · Replies 3 ·
Graduate Quantum Field Theory and Mereological Nihilism/Atomism
- kote
- · Replies 1 ·
Graduate How do fields change if there's no void
- Pjpic
- · Replies 8 ·
Graduate Dual slit experiment: closing/opening a slit after the particle passes it. .
- Valenciennes
- · Replies 1 ·
Graduate Proving Identity of S12^2 in Two Particle System
- evilcman
- · Replies 1 ·
Graduate Are physicists happy with Quantum Mechanics as it is?
- stevefaulkner
- · Replies 40 ·
Graduate Single degree of freedom vs cartesian coordinates in EPR paper
- Neo_Anderson
- · Replies 3 ·
Graduate Atomic Components and the Absorption of Photons
- daisey
- · Replies 8 ·
Graduate How can something be massless?
- VelociBlade
- · Replies 50 ·
Graduate What is the Relationship Between Vacuum Energy and Fluctuations?
- Haroon1
- · Replies 23 ·
Undergrad Why does kx equal ωt at all points on a travelling wave?
- bluestar
- · Replies 5 ·
Graduate Double-Slit Experiment: Does Interference Pattern Change?
- shakespeare86
- · Replies 7 ·
Graduate Calc Feynman Amp Q: Chi+ Chi- -> Chi+ Chi-
- div curl F= 0
- · Replies 1 ·
Graduate Is Causality in Quantum Mechanics as Clear-Cut as in Classical Mechanics?
- Galactor
- · Replies 64 ·
Undergrad Relationship Between Energy and Wavelength
- pzona
- · Replies 1 ·
Graduate The Born Von Karman Boundary Conditions
- Llewlyn
- · Replies 4 ·
Graduate The Quantum Phenomenon and the Staring Phenomenon
- SDetection
- · Replies 13 ·
Graduate Bra/ket notation resources for spin states and eigenvalues
- The thinker
- · Replies 1 ·
Graduate How can the Planck length be claimed to be the smallest length?
- JohnMS
- · Replies 47 ·
Graduate What is integrable quantum field theory and how does it relate to QFT?
- wam_mi
- · Replies 1 ·
Graduate Why does the electromagnetic field adjust when a charged field changes phase?
- thehangedman
- · Replies 3 ·
Graduate No entropy/environment = no time flow?
- dmtr
- · Replies 33 ·
Graduate Where Can I Find Resources for Understanding Stern-Gerlach Experiment Math?
- phil ess
- · Replies 2 ·
Graduate What is integrable quantum field theory and how does it relate to QFT?
- wam_mi
- · Replies 1 ·
Graduate Where does the Schrödinger equation come from?
- Mech-Master
- · Replies 5 ·
Undergrad Understanding Decoherence: Simplifying a Complex Concept in Quantum Mechanics
- Loren Booda
- · Replies 1 ·
Graduate Why is the Hilbertspace complex?
- Sponti
- · Replies 16 ·
Graduate Can someone give me a geometrical description of the math in QM?
- superpaul3000
- · Replies 5 ·
Graduate Ladder operators, a technical question
- actachyon
- · Replies 1 ·
Graduate QCD Meson Potential: Physics Community Agreement?
- BigD
- · Replies 3 ·
Graduate Do gravitons spiral around a monopole?
- stealth666
- · Replies 10 ·
Graduate Particles as representations of groups
- tulip
- · Replies 12 ·
Graduate Particle Trajectory & Velocity in Bubble Chamber vs HUP
- eoghan
- · Replies 7 ·
Graduate Bizzard measurement outcome of Angular Momentum, Why?
- wam_mi
- · Replies 1 ·
Undergrad Looking for a More Practical Quantum Mechanics Book?
- MattLiverpool
- · Replies 5 ·
Graduate Is it true photons will not produce an interference pattern in a vacuum?
- CosmicVoyager
- · Replies 1 ·
Graduate Matter waves are oscillations in what medium?
- CosmicVoyager
- · Replies 25 ·
Undergrad Time for photon to reach the furthest point of diffraction?
- SorcererXIII
- · Replies 3 ·
Graduate Are Finite Well Bound States Enough for a Complete Basis in Quantum Mechanics?
- lttung
- · Replies 1 ·
Graduate Interacting theory lives in a different Hilbert space [ ]
- strangerep
- · Replies 77 ·
Graduate Is the Placement of Branch Cuts in ln(-s^2-iε) Physically Significant?
- RedX
- · Replies 2 ·
Graduate Good Resources for Feynman's Path Integral
- raisin_raisin
- · Replies 2 ·
Graduate Can photons affect each other's trajectories?
- CosmicVoyager
- · Replies 1 ·
Graduate Clarifying Symmetry in Le Bellac's Quantum Physics
- neelakash
- · Replies 4 ·
Undergrad Is the Photon's Energy Doubled in a Coherent Pair?
- LitleBang
- · Replies 20 ·
Graduate Can the SR Concept of Reference Frames be Applied to Quantum Mechanics?
- LarryS
- · Replies 10 ·
Graduate Why the rank of an irreducible tensor must be an integer?
- wdlang
- · Replies 1 ·
Undergrad How Does the Wavefunction Differ for Photons Compared to Electrons?
- gabrielh
- · Replies 8 ·
Graduate What is conformal field theory?
- wam_mi
- · Replies 2 ·
Graduate Relationship between Dyson's equation and Heisenberg equation of motion
- Tanja
- · Replies 7 ·
Graduate What does space quantization of angular momentum actually signify?
- I_am_learning
- · Replies 5 ·
Graduate Kochen-Specker for two particles
- Gerenuk
- · Replies 1 ·
Graduate Incertitude relations from QFT
- TeTeC
- · Replies 1 ·
Graduate When do the laws of general relativity breakdown?
- joebloggs
- · Replies 5 ·
Graduate Do diffracted particles split or transform into waves?
- qazxsw11111
- · Replies 4 ·
Graduate Quantum gases. The ideal Fermi gas
- Petar Mali
- · Replies 1 ·
Graduate Parity and Time Reversal symmetries.
- MathematicalPhysicist
- · Replies 5 ·
Graduate Do people really understand quantum physics or just pretend to?
- USB73
- · Replies 31 ·
Graduate Is a double/single slit experiment possible in a gas chamber?
- Vdtta
- · Replies 25 ·
Graduate Causality and the Role of Propagator in Quantum Field Theory
- wam_mi
- · Replies 5 ·
Graduate Is the Planck mass the smallest possible unit of matter?
- Archosaur
- · Replies 2 ·
Graduate Testing if the momentum operator is Hermitian
- kkan2243
- · Replies 4 ·
Graduate Stark-broadening and plasma polarization
- Jonny_trigonometry
- · Replies 1 ·
Graduate Functional diffential-integral equations
- friend
- · Replies 5 ·
Undergrad 2 Questions on superpostion (Double slit experiment)
- Thevanquished
- · Replies 13 ·
Graduate Quantum Tunneling: Observed properties of the particle within the barrier.
- Repainted
- · Replies 1 ·
Graduate How is the system-environment interaction random in quantum decoherence?
- chafelix
- · Replies 6 ·
Graduate Is the S-matrix Consistent with Time Dependent Hamiltonian?
- Petar Mali
- · Replies 1 ·
Graduate Is the determinant of a mixed state density matrix always positive?
- Fredrik
- · Replies 5 ·
Graduate Why is the transition from 3P1 to 3S1 in Helium forbidden?
- Chaosmarch
- · Replies 3 ·