Quantum Physics Forum

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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 Understanding Barandes' microscopic theory of causality
High School Is this article's reliability questionable?
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Undergrad Is the Wheeler-DeWitt equation somehow related to the Multiverse?
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Undergrad Matrix Representation of an Operator (from Sakurai)
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Undergrad Questions about an optical photon quantum computer
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Undergrad Neutron Star Cores: Study Quantum Gravity Effects?
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Undergrad What is the current experimental evidence for quantum trajectory theory?
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Undergrad Born's rule, causality, and the Dirac equation
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High School The Cat's Perspective: Can Macroscopic Bodies Be in Superposition?
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Undergrad Notation for vectors in tensor product space
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High School Cherenkov radiation double slit experiment
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Undergrad Measurement with respect to the observable Y
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Undergrad In quantum search algorithm, how to interpret the effect of U(t)？
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Undergrad Objective Wave Function and Non-locality
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Undergrad Quantum Gravimeter: Exploiting the Born rule
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Undergrad How to Determine a Photon's Wavefunction After it Collapses?
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Graduate What quantum effects that involve gravity can be studied without QFT?
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Graduate Jürg Fröhlich on the deeper meaning of Quantum Mechanics
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Graduate Random Quantum Walk: Learn & Use w/ Quantum Gates
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Undergrad Request for a clarification about the Ward identity
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Undergrad Some questions in QFT (EM vertex, Ward identity, etc.)
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Undergrad Quantum Computing - projection operators
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High School From where did the ##ie\gamma## come into the picture? (QED)
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Graduate Recent paper on QED using finite-dimensional Hilbert space - validity?
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Graduate Is the Wheeler-DeWitt equation related to Wheeler's It from Bit?
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Undergrad Impact of atmospheric turbulence on secret key rate in QKD
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High School Quantum Entanglement Violates the Laws of Physics
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High School Probability of finding a particle
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Undergrad Would this experiment disprove that consciousness causes collapse?
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High School General form of electromagnetic vertex function in QFT
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Graduate What topics in Quantum Gravity don't require QFT or string theory?
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Undergrad How Does Quantum Field Theory Address Zeno's Paradox of Touch?
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Graduate How Does Qubit Orientation on the Bloch Sphere Indicate Quantum States?
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High School Shrødinger equation & electrons jumping between atoms
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Graduate What is the relationship between MHD waves and the Korteweg de Vries equation?
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Graduate The Higgs Field, constant velocity, and the acceleration of particles
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High School Quantum Wave & Principle of Least Action
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Undergrad Question about a passage in Blundell's QFT
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High School Entanglement when I "produce" positron-electron pairs one at a time
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Undergrad Confusion with Dirac notation in the eigenvalue problem
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Graduate Rabi frequency and "optical resonance and two level atoms" by Allen
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Undergrad Planck had 2 definitions of energy in 1900, how?
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High School How do you find the Lagrangians for different fields?
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Undergrad One vertex interactions in QED - error in the book?
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High School Understanding Quantum: The Particle/Number Duality
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High School Exploring the Nature of Photons: Position, Speed, and Emission/Absorption
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High School Quantum theory for high-school students
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Graduate Uncertainty vs Randomness in Quantum Physics
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Undergrad A bar magnet and magnetic moment in a magnetic field
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Undergrad Quantum Mechanics, The Delta-Function potential
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High School Clarification of Notation - Fourier decomposition of fields in QFT
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Undergrad Is the holographic principle based on fuzzy logic?
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Undergrad Operations regarding tensor-product states
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Undergrad Numerical solution to the Schrodinger eqn. using Finite Difference Method
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Graduate Doubt about a time convolution master equation
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Graduate Golden ratio fractal phase conjugation
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Undergrad Hund's rules and Pauli's principle
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Undergrad How can laser detuning excite an atom?
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Graduate Why do we know that an elementary particle is a point particle?
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Undergrad Particle in free space - what happens to the wave function after measurement?
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Graduate What are the units of the radial wavefunction in my FORTRAN code?
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Graduate Time Evolution of a Square Pulse - Fourier
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Undergrad Is this a new theory, an enhanced theory or just philosophy?
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Undergrad Quantum Jumps and Schrodinger's Cat are predictable
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High School Photon exchange in molecular bonds
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Undergrad What is the true state of a particle in superposition?
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Graduate Is the wavefunction subjective? How?
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Undergrad Can Brain Responses to Quantum Signals Determine True Quantum Interpretation?
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Undergrad Do spin operators 'appear' to commute for an entangled spin state?
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Undergrad Is there a procedure for designing some quantum circuits?
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Undergrad Uncertainty Principle in the context of tracking particle paths
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Undergrad Communicating Via Quantum Entanglement Using Time Differentiated Pulse
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Graduate Can the Huygens-Fresnel principle be translated into path integrals?
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Undergrad The Philosophy of Quantum Mechanics
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Undergrad Role of mass and quantum gravitational effects in friction?
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Graduate Observables when the symmetry is not broken?
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Undergrad Is the Basis in Quantum Physics a Fundamental Property of Objects?
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Undergrad Why Would Observation Change Anything Physically?
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Undergrad Question About The Role of Observation in Quantum Mechanics
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Insights Vacuum Fluctuations in Experimental Practice - Comments
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Graduate On the Planck Blackbody Function
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Undergrad Classicality and the Correspondence Principle
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Undergrad Value of beta in Boltzmann Statistics taking degeneracy into account
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Undergrad How to know where the up and down spin go in the wavefunction?
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Graduate What is the significance of nonlocality super-activation in this paper?
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Undergrad Does this hint of entanglement within protons suggest new physics?
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Undergrad The information paradox and non-locality, ER = EPR
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Graduate What it is the internal space?
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Graduate Someone observing Wigner and his friend
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High School Phase shift in Mach-Zehnder interferometer
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Undergrad Can You Help Me Couple 3 Spin 1/2 Particles?
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Undergrad Explanation of spin degrees of freedom with respect to the x axis
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Undergrad Attractive force of opposite charges by McIrvin
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Undergrad D'Alembertian in Sakurai's Advanced QM book
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Graduate How does Lorentz invariance help evaluate tensor integrals?
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High School Loss of information and Quantum Determinism
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Undergrad According to quantum physics, can our universe be a simulation?
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Graduate Experimental evidence of non-local quantum forces
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Undergrad Entangle Distant Particles: Theoretical Possibility?
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Graduate Does the effective action make sense in Quantum Mechanics?
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High School Understanding Color & Temperature
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