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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Undergrad What is the highest frequency of electromagnetic radiation?
- enter
- · Replies 3 ·
High School Is this a "fair" description of entanglement for a student?
- jon4444
- · Replies 35 ·
Undergrad Inner products on a Hilbert space
- Decimal
- · Replies 2 ·
Undergrad Entangled Photons in Opposite-Configured Mach–Zehnder Interferometers
- cpu1
- · Replies 28 ·
Undergrad Can Schrodinger's cat apply to things other than alive/dead?
- Sundown444
- · Replies 31 ·
Graduate Reproducing Quantum Experiments
- Dennis Plews
- · Replies 14 ·
Undergrad Is the degeneracy of N2+ different from N2?
- BlackPowder
- · Replies 4 ·
High School Can entanglement timing correlations encode information faster than light?
- Miyuki333
- · Replies 19 ·
Graduate Mathematical Quantum Field Theory - Interacting Quantum Fields - Comments
- Urs Schreiber
- · Replies 9 ·
High School Are atoms just subparticles trying to stay in existence?
- Marco DF
- · Replies 11 ·
Graduate The stability of matter: is really Maxwell wrong? (part 2).
- Anonimo
- · Replies 3 ·
Undergrad Green's functions in QFT for the gifted amateur
- Amentia
- · Replies 12 ·
High School Can a screen detect measurement without revealing what was measured?
- Alex Towers
- · Replies 10 ·
Undergrad Does 'fungibility' exist in physics?
- QuantumConfusion
- · Replies 4 ·
Undergrad Dirac equation as one equation for one function
- akhmeteli
- · Replies 40 ·
Undergrad HHL Algorithm for Solving Linear Equations
- dakshina gandikota
- · Replies 1 ·
Undergrad Radiofrequncy Photon Wavefunction
- Frank Peters
- · Replies 3 ·
Graduate Why do copper, gold and cesium have special colors?
- saeho
- · Replies 15 ·
Undergrad Can an observed atom collapse back into a wave?
- StreetLgnd
- · Replies 2 ·
High School Observation in the double-slit experiment
- quantumdave
- · Replies 8 ·
Graduate Quantum Optics: Squeezed light generation
- Korak Biswas
- · Replies 1 ·
Undergrad What's Known about the Wave Function and Gravity
- jon4444
- · Replies 9 ·
Undergrad FTL communication via delayed choice measurement
- Alex Towers
- · Replies 73 ·
Undergrad Why is the wave function associated with single photons, not collections?
- Pushoam
- · Replies 11 ·
Undergrad When should I use a plus or minus sign in space and time translations?
- Silviu
- · Replies 2 ·
High School Entanglement and delayed choice measurements
- Alex Towers
- · Replies 10 ·
High School Is Bell's parameter really a hidden variable ?
- jk22
- · Replies 2 ·
High School White dwarf quantum tunnelling
- YoungPhysicist
- · Replies 4 ·
Undergrad Oracle questions in Grover's Algorithm
- dakshina gandikota
- · Replies 1 ·
Undergrad Does measuring spin on any axis work for a singlet state?
- Silviu
- · Replies 1 ·
Undergrad Particle goes through a double slit + decays, what happens?
- Paper
- · Replies 11 ·
Graduate Quantum measurement and entropy
- gptejms
- · Replies 30 ·
High School How could a Majorana fermion exist?
- YoungPhysicist
- · Replies 6 ·
High School Theories of Quantum Physics, do they exist?
- Suppaman
- · Replies 19 ·
High School Time emergent from entanglement
- TheQuestionGuy14
- · Replies 8 ·
Undergrad World selection in case of entanglement measurement
- entropy1
- · Replies 4 ·
Undergrad Is there a simple explanation for Fermi-Dirac statistics?
- YoungPhysicist
- · Replies 6 ·
Undergrad Solving the Representation of d/dq: Mistake in Reasoning?
- Spin One
- · Replies 2 ·
High School Quantum teleportation from a Curious 10 year Old
- Jacques Marrot
- · Replies 8 ·
Undergrad Standard boost, particles with mass M > 0
- kent davidge
- · Replies 4 ·
High School The Nature of Measurement and Interaction in Quantum Mechanics
- djsourabh
- · Replies 7 ·
Undergrad Why are all particles of the same type identical?
- Deepblu
- · Replies 11 ·
Undergrad Finding expansion coefficient of a 3-d Gaussian wave packet
- Dazzabaijan
- · Replies 12 ·
High School Is wave-particle duality a result of the relativity theory?
- Jianping Zhang
- · Replies 8 ·
High School Applying Einstein Equivalence to the Quantum Realm
- jedishrfu
- · Replies 2 ·
Undergrad Why is e^ikx considered a plane wave?
- Phys12
- · Replies 12 ·
High School Imaging of Light as a Particle and a Wave
- jedishrfu
- · Replies 10 ·
High School Does time emerge from quantum entanglement?
- TheQuestionGuy14
- · Replies 4 ·
Undergrad Difference between an electromagnetic field and a photon?
- josh777
- · Replies 13 ·
Undergrad Dimensions of the double slits in comparison to the electron?
- meatym
- · Replies 1 ·
Undergrad Finding |Ψ(x,t)|² for a free particle wave packet
- Abdul Quader
- · Replies 12 ·
Undergrad Imaginary Part of QHO Solutions?
- LarryS
- · Replies 6 ·
Graduate First material with both topological and superconducting properties
- Nelli
- · Replies 9 ·
Graduate Vacuum in interacting QFT and physical particles
- asimov42
- · Replies 8 ·
Graduate What is quantum synchronization?
- Danny Boy
- · Replies 2 ·
Undergrad Heisenberg - Uncertainty principle - lifetime of a particle
- fab13
- · Replies 2 ·
Undergrad Would Schrödinger's bomb be as uncertain as his cat?
- pBrane
- · Replies 15 ·
Undergrad Photon detectors in a double slit experiment
- Trollfaz
- · Replies 6 ·
Undergrad Quantum Harmonic Oscillator (QHO)
- Abdul Quader
- · Replies 5 ·
Undergrad Can Time Measurement with Mirrors in Special Relativity Be Improved?
- 43arcsec
- · Replies 15 ·
High School Photon Gas in a Box w/ Heat Conductor
- Bruce Haawkins
- · Replies 9 ·
High School Tendency to use entropy to explain everything
- kent davidge
- · Replies 4 ·
Undergrad Understanding second quantization
- acegikmoqsuwy
- · Replies 3 ·
Undergrad Commuting set of operators (misunderstanding)
- Somali_Physicist
- · Replies 3 ·
Undergrad What is the Average Angle of Infrared Emission from a Flat Diamond Surface?
- Bruce Haawkins
- · Replies 1 ·
Undergrad How Do Quantum Field Theory and Quantum Loop Gravity Explain the Quantum World?
- Drew126
- · Replies 1 ·
Undergrad Is a measurement a correlation?
- entropy1
- · Replies 3 ·
Undergrad Identity Operator for Multiple Particles
- acegikmoqsuwy
- · Replies 2 ·
Undergrad Recovering Fermion States in New Formalism?
- acegikmoqsuwy
- · Replies 2 ·
High School Assumption of the conservation of energy to Heat Flow
- Somali_Physicist
- · Replies 5 ·
High School Probabilities with a Bell's state
- jk22
- · Replies 22 ·
Undergrad Probability density functions for velocity and position
- Aleoa
- · Replies 13 ·
High School Carrier wave double slit experiment
- kurt101
- · Replies 1 ·
Undergrad Is There Only One True Outcome in the Many-Worlds Interpretation?
- entropy1
- · Replies 6 ·
High School Zeno Effect: Quantifying the Impact of Observation on Events
- Dadface
- · Replies 7 ·
Undergrad Why do infinite-dimensional matrices represent x and p operators?
- Phys12
- · Replies 2 ·
Graduate Why did Dirac strongly pursue mathematical beauty?
- enter
- · Replies 19 ·
High School Is Randomness in Quantum Mechanics Truly Non-Deterministic?
- Aufbauwerk 2045
- · Replies 88 ·
Graduate Is energy contained in matter wave equals hv like EM waves?
- Jaden159
- · Replies 2 ·
Undergrad Big Bell Test Collaboration: Challenging Local Realism with Human Choices
- DrChinese
- · Replies 6 ·
Undergrad Determinism of Macroscopic World
- bgq
- · Replies 3 ·
High School Are electrons virtual particles?
- BadgerBadger92
- · Replies 26 ·
Undergrad I can't understand this excerpt from a QM book
- Somali_Physicist
- · Replies 9 ·
Undergrad How many bits or bytes of information are present in 1 atom
- Wolfenstein3d
- · Replies 38 ·
Undergrad Measuring combined spin of two particles and spin conservation in annihilation
- Silviu
- · Replies 8 ·
High School Understanding Absence of a Microscopic Arrow of Time
- Islam Hassan
- · Replies 10 ·
High School Why use intensity rather than photon count in Wien's displacement law for the sun's color
- Vrbic
- · Replies 2 ·
Undergrad Which law/formula proves the existence of antimatter?
- Antonio12345
- · Replies 17 ·
Undergrad Decorrelate 2 particles initially entangled
- fab13
- · Replies 5 ·
Undergrad Zeno effect - standard derivation?
- Agrippa
- · Replies 7 ·
Graduate What is the difference between second quantization and QFT?
- fxdung
- · Replies 2 ·
High School How do quantum computers perform simple arithmetic operations?
- member 648030
- · Replies 8 ·
Graduate Do bosons follow Boltzmann statistics if imaged individually?
- Philip Koeck
- · Replies 3 ·
Graduate Thermal Field Theory: Calculating Angular Distribution of CMB
- shahbaznihal
- · Replies 3 ·
High School Is the kinetic energy of a particle quantized?
- Torog
- · Replies 10 ·
High School Do Quantum Fields Move Relative to Each Other?
- friend
- · Replies 14 ·
Undergrad 3p->2s: Why spectral line split into three lines in m. field
- HastiM
- · Replies 2 ·
Undergrad How to increase the energy of an electron
- HastiM
- · Replies 2 ·
Undergrad Are magnetic Ising-like dipoles advanced territory? [in Portugese]
- kent davidge
- · Replies 1 ·
High School Time average value of Spin operator
- Muthumanimaran
- · Replies 3 ·