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 Why does quantum superposition become negligible for large objects?
- batmanandjoker
- · Replies 68 ·
Graduate What makes spin different from classical angular momentum and magnetic moment?
- zrek
- · Replies 2 ·
Graduate Timing in entanglement investigations
- Dadface
- · Replies 16 ·
Graduate Quantum Physics and Lack of Measurement
- michojek
- · Replies 5 ·
Graduate Quantum tunnelling - what is real?
- Jilang
- · Replies 40 ·
Graduate Understanding Joos Equations and Decoherence in Quantum Mechanics
- kye
- · Replies 5 ·
Graduate The jewel found in Quantum mechanics?
- eboy32
- · Replies 19 ·
Graduate Gravity - a non-physical entity
- vivekfw66
- · Replies 16 ·
Graduate How Is the Particle Density Operator Defined?
- aaaa202
- · Replies 3 ·
Graduate How does the theory of general relativity explain gravity?
- San K
- · Replies 1 ·
Graduate Question on derivatives of Hermitian conjugate scalar fields
- "Don't panic!"
- · Replies 4 ·
Graduate Questioning assumptions behind Bell's and related theorems
- bohm2
- · Replies 82 ·
Graduate Space-time continuity as an assumption in quantum theory
- vivekfw66
- · Replies 10 ·
Graduate What does QM hint about time-space?
- San K
- · Replies 3 ·
Undergrad Why Do Electrons in Covalent Bonds Not Remain Stationary?
- harjot singh
- · Replies 3 ·
Graduate A problem in deriving the interaction field equation for photons
- Qubix
- · Replies 2 ·
Graduate Heisenberg Uncertainty Principle Derivation
- stevenjones3.1
- · Replies 1 ·
Graduate The Human Double Slit Experiment
- Legaldose
- · Replies 3 ·
Graduate How to rewrite operator products using time ordering
- aaaa202
- · Replies 5 ·
Graduate How do you physically implement POVM measurement on a qubit without ancillas?
- phonon44145
- · Replies 2 ·
Graduate Electron Probability of being at an location
- twest123
- · Replies 2 ·
Graduate Eigenstate and real space representation
- Arya_
- · Replies 1 ·
Graduate Initial conditions of electrons in the Ives-Stillwell experiment
- exmarine
- · Replies 3 ·
Graduate Parity is Discrete Transformation?
- LagrangeEuler
- · Replies 1 ·
Undergrad Can a Small YBa2Cu3O7 Disk Navigate a Ring Magnet Track in Quantum Levitation?
- Phizix
- · Replies 1 ·
Graduate Polarity in Atoms: Understanding Electron Movement in Covalent Bonds
- harjot singh
- · Replies 5 ·
Graduate Pauli exclusion principle at distance
- airydisc
- · Replies 4 ·
Graduate Quantum Physics: Can We Understand How It Happens?
- Qubix
- · Replies 2 ·
Graduate Why do fermions have 1/2-integer spins?
- lizzie96
- · Replies 2 ·
Graduate How to understand operators representing observables are Hermitian?
- shrodinger1226
- · Replies 38 ·
Graduate Why use shifted action in quantum effective action definition
- wphysics
- · Replies 4 ·
Graduate Momentum operator as differentiation of position vector
- hokhani
- · Replies 5 ·
Graduate Superposition and entanglement
- San K
- · Replies 6 ·
Graduate Does the environment cause wave function collapse
- Fiziqs
- · Replies 94 ·
High School Double slit experiment for school
- thatoneguy6531
- · Replies 3 ·
Graduate How do low-frequency photons escape black hole event horizons?
- PhysicsStuff
- · Replies 30 ·
Graduate Why do we need wormholes to describe entanglement?
- PhysicsStuff
- · Replies 12 ·
Graduate Understanding Time Ordering Operator in Imaginary Time Formalism
- aaaa202
- · Replies 2 ·
Graduate Gradient of product of wave functions
- doktorglas
- · Replies 7 ·
Undergrad Particle in a box Schrodinger equation
- gkiverm
- · Replies 1 ·
Graduate Fundamental difference between quantum physics and classical physics
- shounakbhatta
- · Replies 18 ·
Graduate Partition function as a description of the system
- phys_student1
- · Replies 5 ·
Graduate Evidence that Maldacena’s hologram conjecture is true
- Greg Bernhardt
- · Replies 5 ·
Graduate Is Gravity Responsible for Breaking Quantum Entanglement?
- Jilang
- · Replies 12 ·
Graduate Does position operator have eigen wave function?
- nosafeway
- · Replies 5 ·
Graduate Importance of the observer in double slit experiment and entanglement
- Quarlep
- · Replies 10 ·
Graduate Quantum mechanics and string theory basics
- Volatilis
- · Replies 3 ·
Graduate The Wave Function Of The Universe
- Crazy4Physics
- · Replies 31 ·
Graduate Spherical harmonics and angular momentum operators
- FarticleFysics
- · Replies 3 ·
Graduate What is the significance of commutative operators in quantum mechanics?
- amitbashyal
- · Replies 6 ·
Graduate How does graphene demonstrate quantum tunneling?
- dawozel
- · Replies 10 ·
Graduate Creating of Wormhole during entanglement
- San K
- · Replies 17 ·
Graduate What is the Asymptotic Behavior of the Propagator in QFT?
- ndung200790
- · Replies 1 ·
What is the Bipolar coordinate system used for in the DSM manual?
- Clovis
- · Replies 3 ·
Graduate A particle in 1D potential well
- White_M
- · Replies 1 ·
Graduate Is there a frequency eigenstate for light?
- snoopies622
- · Replies 15 ·
Graduate Building a Quantum Levitation device
- 42Physics
- · Replies 10 ·
Graduate Can Quantum Fluctuations Create Friction in Empty Space?
- anubodh
- · Replies 10 ·
Graduate Fermionic annihilation operator equation notation
- aaaa202
- · Replies 8 ·
Graduate What does the spin-0 state correspond to for spin-1 photons?
- TrickyDicky
- · Replies 3 ·
Graduate Why do we get an interference pattern in a double slit experiment?
- Fiziqs
- · Replies 21 ·
Graduate Device to measure Planck's constant
- Niceperson27
- · Replies 6 ·
Graduate What Does <S> Mean in Spin Measurement?
- lonewolf219
- · Replies 5 ·
Graduate Spectral Function: Concluding Delta, Physical Interpretation, Imaginary Part
- aaaa202
- · Replies 3 ·
Graduate Does the Born inequality make sense if quanta aren't particles?
- Rena Cray
- · Replies 1 ·
Graduate Lagrangian and quantum field theory
- shounakbhatta
- · Replies 14 ·
Graduate Solving Schroedinger Eqn: Interpreting Separation Constant G as Energy
- DaTario
- · Replies 1 ·
Graduate Do photons interact with gravitons?
- jaydnul
- · Replies 3 ·
Graduate Understanding Electron Diffraction: Heisenberg Uncertainty Principle
- bmrick
- · Replies 6 ·
Graduate Time evolution with time dependent Hamiltonians
- wotanub
- · Replies 6 ·
Graduate Effect of Shielding on Electron Penetration
- garvit21794
- · Replies 1 ·
Graduate Entanglement vs space-time continuum
- C. Bernard
- · Replies 23 ·
Graduate What is the physical interpretation of eigenvalues in H?
- Arya_
- · Replies 7 ·
Graduate Double-slit experiment with photons vs electrons
- TrickyDicky
- · Replies 39 ·
Graduate What is the impact of nonperturbative effects on time-dependent quantum theory?
- TrickyDicky
- · Replies 3 ·
Graduate Initial condition for Schrödinger equation
- kengrimwood
- · Replies 4 ·
Graduate Srednicki Ch5 creation operator time dependence
- cedricyu803
- · Replies 2 ·
Graduate Pure to mixed and back to pure state
- kye
- · Replies 9 ·
Graduate I really need a resource to explain the linear potential well to me
- richyw
- · Replies 1 ·
Graduate Can the energy flux of an EM wave be represented by a single photon?
- jaydnul
- · Replies 7 ·
Graduate Critique of the quantum suicide experiment
- Demystifier
- · Replies 36 ·
Graduate Do quantum fluctuations come from nothing ?
- HamzahA
- · Replies 23 ·
Graduate A question on basics of statistical mechanics
- Alpharup
- · Replies 5 ·
Graduate What role does quantum entanglement play in quantum computers?
- Jalo
- · Replies 1 ·
Graduate Understanding a wikipedia article on quantum coordination games
- Strilanc
- · Replies 12 ·
Graduate Solving Projection Operator Questions - QM Basics
- White_M
- · Replies 1 ·
Graduate Is time symmetric quantum mechanics gaining support from recent experiments?
- dm4b
- · Replies 20 ·
Graduate How does the Heaviside step function rewrite time-ordered integrals?
- aaaa202
- · Replies 1 ·
Undergrad How to set up a double slit experiment?
- Fiziqs
- · Replies 9 ·
Graduate Momentum operator for a 2D particle in a box
- Duave
- · Replies 4 ·
Undergrad Wavefunction of Two Particles: Intuitive Explanation
- Alpharup
- · Replies 2 ·
Graduate Why does the wave function have to collapse upon measurement?
- TriKri
- · Replies 6 ·
Graduate Eigenstate of energy but not angular momentum?
- Jerrynap
- · Replies 1 ·
Graduate Creation and anihillation operators
- aaaa202
- · Replies 15 ·
Graduate Do intramolecular bonds vibrate in molecular solids?
- ns_phonon
- · Replies 1 ·
Graduate What Happens to Bob's Measurement in an EPR Experiment?
- tymarats
- · Replies 6 ·
Graduate Can I assume a and b operators commute in mean field theory?
- aaaa202
- · Replies 1 ·
Graduate Silly thermodynamics and quantum mechanics questions
- amrhima
- · Replies 18 ·
Graduate Electromagnetic radiation and perturbation
- hokhani
- · Replies 6 ·
Graduate Radial Probability Distribution Curve for Hydrogen Atom
- Jimmy25
- · Replies 2 ·