Recent questions in Quantum Field Theory

+306 votes

0 answers

Is the electromagnetic field (or any other field) restricted to exist within the bounds of spacetime?

asked Oct 20, 2022 in Quantum Field Theory by LunarPulse

+134 votes

0 answers

Which one should we choose between Schwartz and Srednicki book on Quantum Field Theory if we are reading QFT for the first time?

asked Oct 19, 2022 in Quantum Field Theory by CrystalPulse

+133 votes

0 answers

How do we reconcile the different views of particles in QFT - as excitations of fields, or as independent entities?

asked Oct 19, 2022 in Quantum Field Theory by Luke World

+2 votes

0 answers

If it is proven that spacetime is not fundamental, would that imply that gravity is not fundamental? If so, would the quantum gravity and hierarchy problems disappear since they both assume gravity is fundamental?

asked Oct 19, 2022 in Quantum Field Theory by austinparker

+35 votes

0 answers

What is the double-slit experiment? How does it prove the uncertainty principle?

asked Oct 19, 2022 in Quantum Field Theory by bloop the gasman

+7 votes

0 answers

How hard is it to fit gravity in quantum mechanics?

asked Oct 19, 2022 in Quantum Field Theory by Tomypop (2.8k points)

+2 votes

0 answers

Why does quantum field theory say that particles have no size when we can measure their size with high precision (e.g., electron)? Is this just an approximation or something else entirely?

asked Oct 18, 2022 in Quantum Field Theory by DavidDavidson (2.0k points)

+243 votes

0 answers

In quantum field theory, how are 2 electrons or positrons repelling each other by exchanging a photon different from 1 electron and 1 positron attracting each others?

asked Oct 18, 2022 in Quantum Field Theory by Gerrofski

+123 votes

0 answers

In the Double Slit Experiment, what would the particles actually do if they were not observed or measured?

asked Oct 18, 2022 in Quantum Field Theory by bluevelvet

+28 votes

0 answers

If gravity is not a force, why are we searching for quantum gravity theory or graviton?

asked Oct 18, 2022 in Quantum Field Theory by happy chapper

+90 votes

0 answers

How can a light, passed though a single slit, produce a similar interference pattern to the double-slit experiment?

asked Oct 17, 2022 in Quantum Field Theory by bath master

+17 votes

0 answers

How do virtual particles appear from nothing?

asked Oct 17, 2022 in Quantum Field Theory by NovaMystic

+309 votes

0 answers

Does Young’s double slit experiment support the wave nature or dual nature of light?

asked Oct 17, 2022 in Quantum Field Theory by Mikehughes88

+12 votes

0 answers

Do all quantum field theories have unavoidable infinities?

asked Oct 17, 2022 in Quantum Field Theory by Jsosal

+5 votes

0 answers

What is the relationship between light and mass according to quantum physics? Do double-slit experiments suggest that light has mass or weight? If so, approximately how much does it weigh per square meter of surface area?

asked Oct 17, 2022 in Quantum Field Theory by QuantumDreamer

+257 votes

0 answers

What is the significance of the S-matrix in physics?

asked Oct 17, 2022 in Quantum Field Theory by CelestialFlare

+25 votes

0 answers

Why does a quantum field theory need renormalization? What are the implications of this for physical reality?

asked Oct 17, 2022 in Quantum Field Theory by JMV

+13 votes

0 answers

Can the wave theory be used to explain the behaviour of particles in the double-slit experiment?

asked Oct 16, 2022 in Quantum Field Theory by NovaCharm

+40 votes

0 answers

What does the "Double Slit" experiment prove?

asked Oct 16, 2022 in Quantum Field Theory by Phil the Decorator

+257 votes

0 answers

Do the overlapping fields of physical particles in quantum theory mean the formation of a certain tissue that makes us not see beyond it?

asked Oct 16, 2022 in Quantum Field Theory by nwf

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