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 2012 Nobel Prize in quantum mechanics: observation without destruction
- San K
- · Replies 1 ·
High School Heisenberg's uncertainity princple
- 106267
- · Replies 4 ·
Graduate Cyclic permutation and operators
- MRAH
- · Replies 4 ·
Graduate Number of bound states and index theorems in quantum mechanics?
- tom.stoer
- · Replies 7 ·
Graduate Free Hamiltonian problem for relativistic mechanics
- forhad_jnu
- · Replies 1 ·
Graduate Jost Matrix: Find the Best Book to Learn about It
- katasroffa
- · Replies 2 ·
Graduate Proving (A+B)^n is hermitian when A and B are hermitian
- rbnphlp
- · Replies 1 ·
Graduate Measuring energy and then momentum
- Hypersquare
- · Replies 2 ·
Graduate Can Magnetic Attraction Between Electrons Overcome Electrical Repulsion?
- gildomar
- · Replies 6 ·
Graduate What are the properties of time in quantum mechanics?
- 5ymmetrica1
- · Replies 15 ·
Graduate More detailed explanation of photoelectric effect ?
- mraptor
- · Replies 16 ·
Graduate Is sixfold degeneracy the maximum degeneracy an angular momentum can have?
- thegreedyturt
- · Replies 3 ·
Graduate Is information lost if a particle is annhilated by it's antiparticle
- BernieM
- · Replies 13 ·
Graduate Understanding Spin in Quantum Mechanics: What Does Measuring Along an Axis Mean?
- Jomenvisst
- · Replies 5 ·
Graduate Symmetries and Spin orbit interaction
- jarod765
- · Replies 2 ·
Graduate Quantum physics vs classical physics
- Dammes
- · Replies 2 ·
Graduate Black holes, universe boundaries and geometry
- mfbpc68
- · Replies 2 ·
Graduate What Are the Limitations and Possibilities of Measuring Time?
- cheemaftw
- · Replies 81 ·
Graduate Prove Heisenberg Uncertainty Principle for Ground State Harmonic Oscillator
- Sciencenerd3
- · Replies 12 ·
Graduate What does the operator C^3 represent in Bra-ket notation?
- rsaad
- · Replies 12 ·
Graduate Immortality and Schrodinnger's Cat
- grubby
- · Replies 3 ·
Graduate Lagrangian visualisation and Uncertainty Principle
- exponent137
- · Replies 1 ·
Graduate Proof of Baker-Hausdorff Lemma - Find Online for Quantum Mechanics
- the_kid
- · Replies 1 ·
Graduate Correlation functions vs. Scattering Amplitude
- wam_mi
- · Replies 3 ·
Graduate Is the Photon's Mass Really Zero?
- bgq
- · Replies 20 ·
Graduate QM: measurement vs interaction
- oddthingy
- · Replies 1 ·
Graduate Explanation of a failed approach to relativize Schrodinger equation
- nacadaryo
- · Replies 2 ·
Graduate Perturbation theory infinite well
- Dammes
- · Replies 2 ·
Graduate Is there a universal relationship between momentum and wave vector?
- hokhani
- · Replies 1 ·
Graduate 'Advantages' of Quantum Encryption
- spenserf
- · Replies 8 ·
Graduate Feynman Path Integral - All Possible Paths - Relativity Conflict?
- lovatto
- · Replies 1 ·
Graduate Why is the position operator eigenfunction the Dirac delta function?
- bob900
- · Replies 5 ·
Graduate Phase velocity vs group velocity for electrons and matter waves
- The Head
- · Replies 3 ·
Graduate Can an even number of Fermions be a Bosonic system?
- Imanbk
- · Replies 1 ·
Graduate Calculation of the Pontryagin index
- S_klogW
- · Replies 3 ·
Graduate Experimental evidence for the ground state of energy
- PerpStudent
- · Replies 2 ·
Graduate Why is it impossible to teleport quantum states?
- Jarwulf
- · Replies 2 ·
Graduate Young's Double Slit Experiment with Single Photon Counters and Offset Mask
- ivanb
- · Replies 1 ·
Graduate Momentum Eigenfunctions and Definite Momentum
- jmcelve
- · Replies 3 ·
Graduate Time partial derivative of a wave function
- NeroKid
- · Replies 5 ·
Graduate Qualitative description of photon from faraway star
- birulami
- · Replies 30 ·
Graduate Dirac equation for proton/neutron
- paweld
- · Replies 3 ·
Graduate Quantum Correlations with no Causal Order
- the_pulp
- · Replies 2 ·
Graduate A cat, an electron, and a metaphysician walk into a bar
- konig12345
- · Replies 21 ·
Graduate Entanglement after the photons no longer exist
- San K
- · Replies 5 ·
Graduate Is the Planck length relative?
- Fiziqs
- · Replies 12 ·
Graduate So what does a single photon do to a group of charged particles?
- jaydnul
- · Replies 1 ·
Graduate Integrating the Expectation Value
- chill_factor
- · Replies 1 ·
Graduate Understanding Unpolarized Spin States in Quantum Mechanics
- HomogenousCow
- · Replies 2 ·
Graduate Probabilistic breakdown of quantum mechanics?
- romsofia
- · Replies 8 ·
Graduate What do the partial derivatives in the wave equation represent?
- mraptor
- · Replies 14 ·
Graduate Why does parity exchange left and right-handed spinors?
- center o bass
- · Replies 13 ·
Graduate Bloch Oscillation in 1D crystal Lattice
- TheForce
- · Replies 1 ·
Graduate Proving Eigenstate Energy: Multiply ψ(x) by Hamiltonian Operator for e-ikx
- TheNE
- · Replies 6 ·
Graduate SU(2) representation of time-evolving angular momentum Hamiltonian
- genericusrnme
- · Replies 1 ·
Graduate Origin of the schroedinger's wave equation
- Aniket1
- · Replies 30 ·
Graduate I must be doing something wrong ?
- help1please
- · Replies 1 ·
Graduate Why do wavefunctions sometimes combine?
- Jarfi
- · Replies 2 ·
Graduate What Are Negative Energies in System ψ?
- chill_factor
- · Replies 6 ·
Graduate Is the vacuum state's energy affected by the size of the box?
- Imanbk
- · Replies 6 ·
Graduate Solving the general Schodinger equation
- KillaKem
- · Replies 2 ·
Graduate Expanding Higgs Field: Where Does Energy Come From?
- serp777
- · Replies 1 ·
Graduate What Determines the Direction of a Dipole Operator in Quantum Optics?
- McLaren Rulez
- · Replies 2 ·
Graduate How does quantum mechanics explain the big bang? Infinite realities?
- StayFrosty
- · Replies 1 ·
Graduate On the meaning of indeterminism of Quantum Theory
- askhetan
- · Replies 19 ·
Graduate Boson Statistics: Why Does the Rule Fail?
- phonon44145
- · Replies 7 ·
Graduate Unitary operator + Lorents transformations (question from Peskin)
- center o bass
- · Replies 1 ·
Graduate Michio Kaku's teleportation device
- Cody Richeson
- · Replies 11 ·
Graduate Charge as a coefficient of the Lie algebra?
- help1please
- · Replies 14 ·
Graduate How do I expand gamma matrices without adding a unity matrix?
- help1please
- · Replies 12 ·
Graduate Problem understanding Green's function equality in Messiah QM II
- tobe
- · Replies 2 ·
Graduate Quantum Tunneling Probability for a rectangular barrier
- Stevenpd
- · Replies 7 ·
Undergrad Quantum Tunneling VS Water (or any other) Waves
- QuantumMan
- · Replies 5 ·
Graduate Is quark-gluon plasma actually a plasma if it's a frictionless liquid?
- SW VandeCarr
- · Replies 7 ·
Graduate What is the range of angles for the quantum spin correlation formula?
- gametheory
- · Replies 7 ·
Graduate SU(2) generators in j=1, and pauli uncertainty
- Kontilera
- · Replies 1 ·
Graduate Time Dependence in Pictures of QM
- jonbones
- · Replies 3 ·
Graduate What is the Operator for Absolute Value of Momentum in Quantum Mechanics?
- csopi
- · Replies 3 ·
Graduate 1D Groundstate wavefunction always even for even potential?
- Wavelet
- · Replies 3 ·
Graduate Quantum linear response theory?
- baranas
- · Replies 3 ·
Graduate Radius of the electron and uncertainty
- IWantToLearn
- · Replies 3 ·
Graduate Why is the pilot-wave theory controversial ? Is it?
- nonequilibrium
- · Replies 113 ·
Graduate Conservation of momentum and uncertainty.
- dipole
- · Replies 10 ·
High School Query regarding concepts of charges
- joyraj
- · Replies 1 ·
Graduate How does conservation of energy/mass apply to neutrinos?
- Endervhar
- · Replies 17 ·
Graduate Is the Quantum Spin Complementary?
- Faradave
- · Replies 18 ·
Graduate Deriving Measurement Operators for Realistic Detectors
- Killtech
- · Replies 15 ·
Undergrad Electron Configuration for Multivalent electrons.
- Yellowcard95
- · Replies 1 ·
Graduate Spectrum of Sodium vs. Hydrogen
- roam
- · Replies 1 ·
Graduate Can a conscious observer collapse the probability wave?
- Fiziqs
- · Replies 128 ·
Graduate Question on the probabilistic nature of QM
- Wormaldson
- · Replies 94 ·
Graduate Repeling particles on a ring, minimum angular momentum.
- Spinnor
- · Replies 13 ·
Graduate Noether currents for local gauge symmetry
- szg138
- · Replies 12 ·
High School I wanted to know how it is determined uncertainty
- nebbione
- · Replies 20 ·
Undergrad Can EM Radiation Create Repulsion on Non-Magnetic Objects?
- Shriraksha
- · Replies 2 ·
Graduate How Can the Bell Experiment Be Performed with a Guaranteed Polarization?
- g.lemaitre
- · Replies 8 ·
Graduate Field theory plane wave volume integral
- center o bass
- · Replies 5 ·
Graduate The crazy world of quantum mechanics.
- Please help
- · Replies 5 ·
Graduate Plane waves and sites distance in a lattice
- AdeBlackRune
- · Replies 3 ·
Graduate Space inversion and time-reversal in Weinberg QFT volume 1
- qinglong.1397
- · Replies 1 ·