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 Observation time and its relation to the quantum Zeno effect
- xaratustra
- · Replies 1 ·
Graduate Russian Roulette and schrodinger's cat
- sodaboy7
- · Replies 2 ·
Graduate Two level system Schrodinger Equation problem
- TheDestroyer
- · Replies 2 ·
Graduate Does the Higgs mechanism explain inertia and relativistic mass increase?
- sweet springs
- · Replies 1 ·
Graduate Bound states in propagator
- geoduck
- · Replies 1 ·
Graduate Quantum Mechanics Before Classical Mechanics: Implications and Speculations
- jacar3000
- · Replies 5 ·
Graduate When does a wavefunction inherit the symmetries of the hamiltonian?
- espen180
- · Replies 3 ·
Graduate Does first order QED matrix elements vanish?
- center o bass
- · Replies 4 ·
Graduate Normalization to delta distribution
- Jano L.
- · Replies 3 ·
Graduate What Determines the Barrier Field in Fowler-Nordheim Tunneling?
- martin f
- · Replies 1 ·
Graduate Normalisation of quantum states
- bayners123
- · Replies 4 ·
Graduate Why Does Bra-Ket Notation Assume Linearity in Quantum Mechanics?
- sliorbra
- · Replies 7 ·
Graduate Find Complex Conjugate of u_j in Adjoint of Equation
- cragar
- · Replies 1 ·
Graduate Why does the black body spectrum require quantization of light?
- holtto
- · Replies 8 ·
Graduate What is the purpose of the Schrodinger wave equation in quantum mechanics?
- nouveau_riche
- · Replies 13 ·
Graduate The arguments against macroscopic quantum states are
- skynelson
- · Replies 11 ·
Graduate Electron and graviton degrees of freedom
- unih
- · Replies 2 ·
Graduate Square root of volume in fourier expansion of the vector potential
- center o bass
- · Replies 1 ·
Graduate Difference between active and passive transformations.
- thepopasmurf
- · Replies 5 ·
Graduate Does QED reproduce classical electrodynamics? How?
- Feynlee
- · Replies 5 ·
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
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Graduate Experimental evidence for the ground state of energy
- PerpStudent
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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
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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
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Graduate Understanding Unpolarized Spin States in Quantum Mechanics
- HomogenousCow
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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
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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 ·