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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.

Quantum Interpretations and Foundations

Is the quantum wave function a real object or a mathematical tool?
Graduate Variable speed of light in QED
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Graduate What Are the Strange Results of Second Quantization?
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Graduate Why particle and antiparticle have the same mass?
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Graduate Explicit form of time evolution operator
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Graduate Quantum Superposition & Philosophy
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Graduate How to derive the Breit equation (Pauli approximation) in position space?
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Graduate How to understand electrostatics field in quantum level?
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Graduate What Are the Matrix Forms of the Six Generators of Group SO(4)?
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Graduate Coulombic interaction between the proton and electron of a hydrogen atom
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Graduate What is a Hermitian Operator? Explained & Proven
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Graduate Uncertainty Principle Hypothetical question
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Undergrad What is the largest size for identical particles?
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Graduate Temporaly uncertainty principle
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Graduate Can superposition be tested by gravity?
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Graduate Can a quantum formalism exist without a Hamiltonian Formalism
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Graduate Finding Spectrum of Hamiltonians
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Graduate Analog of Hawking Radiation Observed?
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Graduate Question on delta potential function
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Graduate Golden ratios in quantum mechanics?
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High School Mastering the Operator: Unlocking Its Purpose and Benefits
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Graduate Why they call them Lie groups.
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Graduate Schrodinger's equation and the Diffusion equation
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Graduate How do Pauli and Dirac Matrices Relate to Quaternions?
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Graduate How Are Commutation Relations Derived in Quantum Field Theory?
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Graduate QFT: Srednicki's Book: What Does a(x) Represent?
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Graduate Time independent Klein–Gordon equation with boundary conditions.
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Graduate Ladder operators for angular momentum
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Graduate Worked Out Example of Consecutive Observations in QM
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Graduate The cause of entanglement / coupling
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Graduate Dirac's explanation of negative energy states
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Graduate Two Bosons in a Box: Is it 2/3?
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Graduate Why is Schrodinger's Equation complex?
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Graduate What Happens to Rainbow Fringes with Monochromatic Red Light Diffraction?
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Graduate Bell's theorem proof. Does it really proofs anything?
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Undergrad Quantum Singularities - What Is It?
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Graduate Why energy level transitions only absorb or emit photons？
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Graduate Equation describing particle with spin higher than 1/2
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Graduate What is complex quantum mechanics?
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Graduate Simultaneous diagonalization of two hermitian operators
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Graduate Which wave function and operator is responsible for the Double Slit Experiment?
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Graduate Intuitions on a Dual Vector Space
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Undergrad What is the electromagnetic field?
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Graduate Time independent operators and Heisenberg eq - paradox?
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Graduate Can you explain the phenomenon of stimulated emission in lasers?
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Graduate Is It Possible to Create a Perfect Square Using Planck Lengths?
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Graduate Does Quantum Physics Prove there is no such thing as Matter?
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Graduate Quantum immortality. Are we immortal?
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Graduate Trapped Ion Computing Question
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Graduate Effects of a 10^60 Decrease in Solar Photon Energy on Earth's Temperature
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Graduate HiLets say I have a Hamiltonian which is invariant in e.g. the
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Graduate Uncertain principle and Noether theorem?
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Graduate From Heisenberg to Superposition states
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Graduate Understanding Weinberg's QFT Proof of Annihilation/Creation Operator Sum
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Graduate Quantum Optics wave amplitude question
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Graduate Quadrupole-quadrupole interaction?
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Graduate Are There Operators in Quantum Physics Without Eigenvalue Properties?
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Graduate Meaning of h.c. in Lagrangians (& elsewhere?)
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Graduate Wavelength of photon and size of imaged object
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Undergrad What is the effect of photon-electron collisions in X-ray imaging?
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Graduate What Are Propagators and Green's Functions in Quantum Mechanics?
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Graduate Number of electron of a Hydrogen atom (molecule)
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Graduate Why Is Quantum Mechanics So Difficult to Understand?
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Undergrad Entanglement and Teleportation
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Undergrad Was the relation between E and f known BEFORE quantum theory?
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Graduate What is the Role of Neutrinos in Explaining Beta Decay Energy Loss?
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Graduate Temporal symmetry solves all quantum paradoxes?
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Graduate Quantum Cryptography Project Help.
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Graduate Etracting ZPP from the vacuum is in violation of the 1st law of thermodynamics?
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Graduate Understanding the Thermal Average of Operators in Quantum Mechanics
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Graduate Mapping Points on the Bloch Sphere
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Graduate What happens if two operators commute?
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Graduate Attosecond Tomography and Elephants
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Graduate How do we make sense of exponentiating an operator in quantum mechanics?
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Graduate Why in Quantum Mechanics is about energy but no force
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Graduate Interference pattern observed half-way into the formation
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Graduate Are virtual photons and electron-positron pairs related in the polarized vacuum?
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Graduate Does Collapsing a Wave Function Require Inputting Energy into a System?
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Graduate Symmetries in Quantum Mechanics
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Graduate Questions concerning Delayed Quantum Eraser
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Graduate Why Must Annihilation Occur Between Particle and Corresponding Antiparticle?
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Graduate What constitutes as a measurement?
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Graduate Time dependent perturbation theory
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Graduate Energy levels for a different plancks constant
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Graduate Density Matrix (pure state) Property
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Graduate Understanding Schrödinger's Cat Experiment and the Many Worlds Interpretation
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Graduate Planck's Inspiration to Solve Blackbody Radiation
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Graduate Commute Operators: Hi Niles - Find Out Now
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Graduate Spin, Anti-matter and all that jazz.
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Graduate How does interacting Lagrangian have form of product of fields?
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Graduate Grover's Algorithm/Superposition?
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Graduate Who Can Apply the Operator on a Wave Function to Measure an Observable?
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Graduate Energy: Discrete or Continuous
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Graduate Basic question about how spin changes in time
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Graduate Symmetry factors (Srednicki, figure 9.11)
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High School If we saw x-ray waves could we see the inside of the objects?
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Graduate Quantization of Klein-Gordon Field
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Graduate Weak Electron Interaction: Virtual Photon Effects?
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Graduate What is the significance of the E/M ratio in modern physics?
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Graduate Quantum Mechanics Questions: Superposition, Bohm Mechanics
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Graduate Question about the uncertainty principle?
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