Recent questions in Quantum Field Theory

+82 votes

0 answers

What was the reaction to the theory of quantum mechanics when it was first introduced?

asked Apr 12, 2022 in Quantum Field Theory by jeznotts

+91 votes

0 answers

Why has the Higgs field settled on a "false vacuum", unlike all other fields in quantum mechanics?

asked Apr 12, 2022 in Quantum Field Theory by Paco de Lucia

+49 votes

0 answers

If quantum theory is a fundamental description of our universe, wouldn’t the principle of unitarity dismiss any actual beginning or end to the universe and must it therefore be infinite?

asked Apr 12, 2022 in Quantum Field Theory by Jonathan Lobb

+13 votes

0 answers

What is a particle state in quantum mechanics (QM) and quantum field theory (QFT)? How does it differ from classical states?

asked Apr 11, 2022 in Quantum Field Theory by MrSearching

+315 votes

0 answers

What is an oscillation in the context of a quantum field, and why do they do this?

asked Apr 11, 2022 in Quantum Field Theory by Roy Smith

+9 votes

0 answers

What is a good book to learn about quantum field theory for someone with a background in classical/semiclassical physics?

asked Apr 11, 2022 in Quantum Field Theory by FatHands (3.5k points)

+20 votes

0 answers

Why do virtual particles exist?

asked Apr 11, 2022 in Quantum Field Theory by Bigplumber

+4 votes

0 answers

How many fundamental particles are there? What are their names?

asked Apr 11, 2022 in Quantum Field Theory by Chrispy83

+228 votes

0 answers

The double slit works with atoms. How big of a molecule would not create a wave pattern in the double slit experiment? Eventually a molecule large enough would be too big to create a wave pattern. What molecules are big enough to be examples of this?

asked Apr 11, 2022 in Quantum Field Theory by fire

+226 votes

0 answers

When you observe something, you interact with it or change it in some way, right? So why don't physicists say that the results of the double slit experiment are different when you observe it because observing it would change the results?

asked Apr 11, 2022 in Quantum Field Theory by MysticVerse

+18 votes

0 answers

How does the double slit experiment accurately prove quantum physics exist?

asked Apr 11, 2022 in Quantum Field Theory by AstralSeeker

+23 votes

0 answers

Is quantum field theory derived from quantum mechanics or vice-versa?

asked Apr 10, 2022 in Quantum Field Theory by Itandje

+164 votes

0 answers

What's the big deal about operators in QM/QFT? Aren't they just functions on a vector space? I don't see how that's fundamentally different from, e.g., the functions used in classical electrodynamics.

asked Apr 10, 2022 in Quantum Field Theory by garyclay

+26 votes

0 answers

What is the reason why quantum physics has not been able to find a unified field theory that unites all four fundamental forces?

asked Apr 10, 2022 in Quantum Field Theory by Diydreamer

+923 votes

0 answers

How does the superconformal field theory work?

asked Apr 10, 2022 in Quantum Field Theory by EnchantedGale

+17 votes

0 answers

Is quantum physics just guess work?

asked Apr 10, 2022 in Quantum Field Theory by alpha_remodeling

+3 votes

0 answers

If space is nothing and the expansion is just particles moving apart, why are we looking for a way to turn space into a quantum theory?

asked Apr 10, 2022 in Quantum Field Theory by Gazowl1975

+262 votes

0 answers

Are the quantum fields of the “particles” of the standard model a manifestation of one universal quantum field or do they have their separate existence?

asked Apr 10, 2022 in Quantum Field Theory by Rod Hamilton

+17 votes

0 answers

Can physics describe how a wavefunction collapses?

asked Apr 10, 2022 in Quantum Field Theory by EnchantedGale

+11 votes

0 answers

How do particles interact with each other in a quantum field?

asked Apr 10, 2022 in Quantum Field Theory by TyRom0408

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Recent questions in Quantum Field Theory

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