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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

Graduate Universal quantum physics
Graduate Naive Feynman diagram question
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Graduate Is there any approximation to the two particle density matrix
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Undergrad What is a Pure State and Mixed State?
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Graduate Do antiparticles really go back in time?
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Graduate Circuit Response to Gamma Rays
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Graduate QFT and unitary Lorent representation
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Graduate Can Photons Ever Acquire Mass Through Theoretical Processes?
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Graduate Why does an observer affect the electron?
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High School What Is the Size of a Photon?
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Graduate Schrodinger equation in gravitational field
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Undergrad Looking for explanation of randomness.
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Graduate Do massless particles always have momentum in the direction of travel?
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Graduate Why Do Spin 1/2 Particles Behave Like a Twisted Ribbon?
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Graduate Invariant quantities for antimatter
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High School What is Superposition? Explained in Simple Terms
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Graduate Brian Green's Beam Splitter Experiments
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Graduate Superposition and Kets: Rational Discussion
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Graduate Matrix Mechanics for the Bored Wave Mechanics Student
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Graduate Is Wave-Particle Dualism the Key to Understanding Quantum Mechanics?
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Graduate Eigenkets of the field operator.
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Graduate Heisenberg and quantum mechanics
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Graduate Understanding Multidimensional Time
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Undergrad Can Technology Convert Matter to Energy and Vice Versa?
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Graduate QFT Peskin Errata: Pauli Vilars Regularization & Ward Takahashi Identity
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Graduate Understanding Fourier Series and Heisenberg Uncertainty Principle
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Undergrad Blackbody Radiation: Explaining Integer Frequencies
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Graduate What Does the Wave Function y(r,t) Represent in Quantum Mechanics?
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High School Hiesenberg uncertainty principle in 100 ACII characters or less
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Graduate Quantum Evolution by Johnjoe McFadden: Fascinating Read on Quantum Physics
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Graduate Mutli-partite states and operators
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Graduate Explanation for term in formula, QFT
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Graduate Gravity & Casimir Force: Is There a Link?
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Graduate Storing Photons: A Theoretical Possibility?
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Graduate Quantum entanglement information transfer proven?
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Graduate Struggling to Get the Same Result: Solving Schrödinger Equation
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Graduate Quantum Interference: Is There a Size Limit?
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Graduate How Can I Understand QFT in My Own Way?
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Graduate Griffiths Problem 1.15: Understanding Complex Potential
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Graduate Can Entropy and Time Reversal Coexist with Irreversible Wavefunction Collapse?
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Graduate Why Does Quantum Field Theory Insist on Integral Particle Numbers?
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Graduate Can Electrons Really Pop Into Existence When We Observe Them?
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Graduate What is wrong with this lagrangian
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Graduate Confused about time on the quantum scale
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Graduate What Are the Key Postulates of Quantum Physics and Their Implications?
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Graduate Does the Pauli Exclusion Principle Span Distance?
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Graduate Electric and Magnetic Fields due to Photon
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Graduate Is the photoelectric effect a particle phenomenum?
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Graduate Energy of the harmonic oscillator
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Graduate Where the hell did my thread go?
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Undergrad Trying to see light as a wave
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Graduate Understanding the Uncertainty Principle: Momentum & Position
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Graduate What is the normalization of photon states in QFT?
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Graduate Eigenfunctions versus wavefunctions
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Graduate Why Does the Unruh-Hawking Model Precisely Predict a Thermal Radiation Spectrum?
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Graduate Non-Linear Schroedinguer equation
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Graduate What to do once you'v learned Quantum Physics
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Graduate Visual Quantum Mechanics: Benefits for Modern Physics
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Graduate Atomic photon versus cavity photon
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Undergrad Balmer Lines in Quantum Physics
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Graduate How Can We Quantize the Celerity Operator in Lagrangian Mechanics?
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Graduate Variatonal principles in quantum Field Theory
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Undergrad Properties of Photons: What's the Difference?
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Graduate Uncertainty Principle & Nucleons - Sam
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Graduate How can we test the holographic principle and nonlocality in quantum mechanics?
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Graduate Do we really need all this funky notation?
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Graduate Dirac Lagrangian not invariant under rotations?
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Graduate An expression for the mass ?
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Graduate How can a non-resonant monochromatic light induce an atomic transition?
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Graduate Does the photon has a dipole moment?
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Graduate Experimental interference of independent photons
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Graduate Can Anyons Be Used to Create a Topological Quantum Computer?
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Graduate Explore Quantum Physics: Uncovering the Mysteries
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Graduate What is the meaning of the quantity c in scalar quantum field theory?
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Graduate Free/Bound Electrons and Photon absorption
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Graduate Maxwell field, ground state energy, 'The Universe in a Nutshell' help
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High School Atomic Energy Release: How Long Does It Take?
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Graduate What do think is photon a quanta?
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Graduate How to prove that d^2/dx^2 is a hermitian operator?
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High School How Do Photons Create Different Colors of Light?
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Graduate Physical justification for Uncertainty principle
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High School Home experiment - annhialation
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Graduate Quantum Physics and Spirituality
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Graduate Is Relational Quantum Mechanics a Viable Alternative Interpretation?
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Graduate What decides the particle state?
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Graduate Planck average energy reduce to Boltzmann energy
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Graduate Beginner Questions About Quantum Mechanics
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Graduate Help About charge conjugation of Dirac spinor
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Graduate How do you know that there's an electron in the hydrogen atom?
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Graduate Physical significance behind [H, rho]=0
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Graduate Conceptual problem with perturbation theory
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Graduate Distance=Planck Length * integer value?
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Graduate I think quantum state collapse is in contradiction with the storage of QBits
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Graduate Can Schrodinger's Cat Truly Be Dead and Alive at the Same Time?
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Graduate The time-symmetry and indeterminacy of elementary processes
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Graduate Einstein-Podolsky-Rosen (EPR) Paradox
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Mastering Quantum Soccer for Beginners
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Graduate Understanding Single Particle States in Quantum Mechanics
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Undergrad Decoding the Universe by Seife - Science or speculation?
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Graduate Decoherence and the number of degrees of freedom
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Graduate Quantum Physics Question: What Happens When Not Observed?
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