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 Can we experimentally win simple quantum pseudo-telepathy games yet?
- Strilanc
- · Replies 4 ·
Graduate What Would Happen If We Set Up the Double Slit Experiment Differently?
- Fiziqs
- · Replies 37 ·
Graduate Visualising Potential Wells in Two Body Systems
- Xander314
- · Replies 2 ·
Graduate Can a region of space-time be created with no ER?
- San K
- · Replies 4 ·
Graduate Analytic Solutions to Schroedinger Equation
- YAHA
- · Replies 1 ·
Graduate Confusion about the electron sub shells.
- JizzaDaMan
- · Replies 6 ·
Graduate What is limit to electrone-hole gas density?
- Stanley514
- · Replies 1 ·
Graduate Why do particles have non-zero position amplitude across all space?
- James MC
- · Replies 17 ·
Graduate Why Must J_z Eigenvalues Be Integer-Spaced for Fixed J²?
- A_B
- · Replies 6 ·
Graduate Why do fields vanish at infinite time during canonical transformations?
- ndung200790
- · Replies 1 ·
Graduate Dosen't energy eigenvalue depend on x?
- rar0308
- · Replies 4 ·
Graduate How are correlations in entangled photon pairs detected experimentally?
- Dadface
- · Replies 13 ·
Graduate What is the intrinsic parity of anti-particles?
- dEdt
- · Replies 3 ·
Graduate How Does Equation 4.144 Follow from 4.143 in Quantum Field Theory?
- Yoran91
- · Replies 10 ·
Graduate What qualifies as an observer in quantum mechanics?
- kostas230
- · Replies 130 ·
Graduate Why does d/dt transform to a partial derivative in the integral?
- Lasha
- · Replies 1 ·
Graduate Schrodinger's Cat vs. The Principle of Explosion
- jason_m
- · Replies 40 ·
Graduate Violation of thermodynamics law
- ajayguhan
- · Replies 3 ·
Graduate Can Amplitudes Be Assigned Between Subspaces in Quantum Mechanics?
- dEdt
- · Replies 1 ·
Graduate Derivation of rayleigh jeans law
- ajayguhan
- · Replies 1 ·
Graduate Is Dirac's Principles of Quantum Mechanics a good way to learn?
- jack476
- · Replies 6 ·
Graduate Physicist disentangles 'Schrodinger's cat' debate
- StevieTNZ
- · Replies 28 ·
Graduate Do particles have discrete energy levels?
- Dammes
- · Replies 6 ·
Graduate How Can We Represent Electron Wave Length in an Equation?
- PhyHunter
- · Replies 2 ·
Graduate What is Avoided crossing or Level repulsion
- sugeet
- · Replies 12 ·
Graduate Can you ever have an odd number of entangled particles?
- Fiziqs
- · Replies 13 ·
Graduate What is the relationship between degeneracy factor and photon polarization?
- ajayguhan
- · Replies 11 ·
Graduate Current standing of qubit research
- Verdict
- · Replies 3 ·
Undergrad Normalisation and normalising wavefunctions
- indeterminate
- · Replies 3 ·
Graduate Many-Body Quantum Field Theory
- dEdt
- · Replies 3 ·
Graduate Eigenstate-to-eigenstate evolution with no intermediate superposition?
- James MC
- · Replies 5 ·
Graduate Experiments directed towards discreteness/continuity
- Kidphysics
- · Replies 1 ·
Graduate Following collapse of the waveform
- rroubaix
- · Replies 1 ·
Graduate Quantum entanglement and computing
- MathJakob
- · Replies 6 ·
Graduate How certain do we have to get about a particle's position ?
- B4ssHunter
- · Replies 1 ·
Graduate Why Does Negative Current Occur in LEDs at Low Voltage?
- Superman234
- · Replies 1 ·
Undergrad Representation of numbers in quantum bits
- Vphysics2013
- · Replies 1 ·
Graduate Need to discuss about quantum concepts
- pattisahusiwa
- · Replies 1 ·
Undergrad Why is there a peak in the visible range?
- MathewsMD
- · Replies 2 ·
Graduate How to go from Heisenberg operators to Schrödinger operators
- snoopies622
- · Replies 10 ·
Undergrad Can Excess Photon Energy Cause an Electron to Jump Energy Levels?
- bloupo
- · Replies 8 ·
Graduate What is the concept of multiple orthogonal time dimensions?
- dakim
- · Replies 12 ·
Graduate Plasma and light atom collision.
- SeanM1990
- · Replies 8 ·
Graduate Non-relativistic limit of QFT momentum and field derivatives
- guillefix
- · Replies 3 ·
Graduate What determines an amplitude of a wave particle?
- Goodver
- · Replies 7 ·
Graduate Unitary in quantum field theory
- shuijing
- · Replies 3 ·
Graduate What happens to the freq of a photon after encountering double slit?
- San K
- · Replies 4 ·
Graduate Controlled delayed quantum erasure?
- jarekd
- · Replies 6 ·
Graduate What are the Different Formulations of Quantum Mechanics?
- bolbteppa
- · Replies 88 ·
Undergrad Why introduce matrix in quantum mechanics
- qls
- · Replies 3 ·
Graduate Is Superposition the Explanation for Bell Inequality Violations ?
- Point Conception
- · Replies 1 ·
Graduate Can someone explain the diffraction of electrons through a single hole?
- Goodver
- · Replies 4 ·
Graduate Scalar gravity -Feynman lectures on gravitation
- muppet
- · Replies 4 ·
Graduate Initial conditions in quantum mechanics
- springwave
- · Replies 4 ·
Graduate Quantum Mechanics Practical Scenarios
- Vphysics2013
- · Replies 5 ·
Graduate Why do N qubits have 2^N states instead of 2N states?
- samaaa
- · Replies 6 ·
Undergrad Difference ionic and covalent bonds
- jostpuur
- · Replies 4 ·
Graduate Calculating the amplitude that a particle is spin up
- dEdt
- · Replies 5 ·
Graduate Variational Derivation of Schrodinger Equation
- bolbteppa
- · Replies 6 ·
Undergrad Is energy quantized?
- quawa99
- · Replies 3 ·
Graduate Given a Hamiltonian how do you pick the most convenient Hilbert space?
- golnat
- · Replies 3 ·
Graduate Noether current for exchange symmetry
- Ravi Mohan
- · Replies 8 ·
Graduate Schrodinger Equation for Constrained Particle
- chrisa88
- · Replies 12 ·
Graduate Can a quantum system continuously evolve between eigenstates of the same observable?
- James MC
- · Replies 8 ·
Graduate How does quantum pseudo-telepathy work, as a quantum circuit?
- Strilanc
- · Replies 1 ·
Graduate Understanding Plancks Quanta for Quantum Mechanics
- agonydrum
- · Replies 3 ·
Graduate Can constant photon exchange in orbits produce infinite energy?
- Lasha
- · Replies 11 ·
Graduate Introductory literature, quantum mechanics
- freddyfish
- · Replies 1 ·
Graduate What do the Ms in ml and ms quantum numbers stand for?
- Stickybees
- · Replies 2 ·
Graduate Understanding Entangled Particles: Is it Possible?
- Learningd
- · Replies 3 ·
Graduate Green's function of the Klein-Gordon operator
- guillefix
- · Replies 4 ·
Graduate Planck's Unit and universal constants
- shounakbhatta
- · Replies 5 ·
Graduate NYT review of How the hippies saved physics
- bcrowell
- · Replies 22 ·
Graduate Are Thermal States Always Mixed States?
- camipol89
- · Replies 4 ·
Graduate What are some examples of imperfect entanglement in spin 1/2 systems?
- James MC
- · Replies 3 ·
Graduate Solving QM-like Problem (Shankar, Coupled Mass)
- Astrum
- · Replies 5 ·
Graduate Why does the tensor product in QM produce unentangled states?
- meBigGuy
- · Replies 7 ·
Graduate Velocity of alpha particle within nucleus
- sunrah
- · Replies 3 ·
Graduate How can I present my new atomic model to the scientific community?
- jerryscan
- · Replies 7 ·
Graduate Pasting polarized lenses to a PBS ?
- Zafa Pi
- · Replies 2 ·
Graduate Black body radiation and maximum spectral density
- fede.na
- · Replies 1 ·
Graduate Why Is a Given State an Eigenstate of Field Operators in Quantum Field Theory?
- chientewu
- · Replies 5 ·
Graduate Increasing intensity causes a contradiction in classical physics?
- Turion
- · Replies 2 ·
Graduate How Does Δml=0 and Δl=±1 Apply in Quantum Mechanics?
- pluspolaritons
- · Replies 2 ·
Graduate Linear to Circular Polarisation Questions
- StevieTNZ
- · Replies 1 ·
Graduate Is there really such a thing as a definite state?
- Albert V
- · Replies 5 ·
Graduate Tensor techniques in $3\otimes\bar 3$ representation of su(3)
- lennyleonard
- · Replies 7 ·
Graduate What is the relationship between frequency and wave function?
- phyky
- · Replies 1 ·
Graduate Quantum Computing: How Fast Could It Go?
- Big-Daddy
- · Replies 2 ·
Graduate Why does the Klein-Gordon propagator have a negative i in the exponential?
- guillefix
- · Replies 2 ·
Graduate Three-Particle Quantum Nonlocality under Strict Locality Conditions
- DrChinese
- · Replies 3 ·
Undergrad Compton vs photoelectric effect.
- A Dhingra
- · Replies 4 ·
Graduate Which QM topics matter most for electron-phonon coupling in solids?
- Jeffrey Yang
- · Replies 1 ·
Graduate Hidden variables - Bell - The Law of Malus?
- Zafa Pi
- · Replies 1 ·
Graduate Entanglement Between Photons that have Never Coexisted
- DrChinese
- · Replies 47 ·
Graduate How Do Infinite and Finite Light Sources Produce Different Wavefront Shapes?
- Kehsibashok
- · Replies 2 ·
Graduate How Do Entangled Particles Communicate Faster Than Light?
- kavonkazem
- · Replies 4 ·
Graduate Heisenberg uncertainty principle and wavelength of light
- geoduck
- · Replies 4 ·
Graduate Computing Wigner D-Matrices: Contradiction Found
- sale
- · Replies 1 ·
Graduate Quantum entanglement as a higher dimension arc?
- conete
- · Replies 2 ·