Covariant vs Canonical Formalism

  • Thread starter Thread starter Quantizer
  • Start date Start date
  • Tags Tags
    Covariant
Quantizer
Messages
26
Reaction score
0
Why is a covariant formalism preferred over a canonical formalism in loop quantum gravity, in simple layman terms
 
Physics news on Phys.org
Does the usual layman understand what is meant by covariant and canonical?
 
What are the advantages of covariant approach over canonical approach for loop quantum gravity, pedagogical answer please
 
Ultrafastped, Feynman was admired specifically because he could articulate the most simplest responses to all sorts of profound questions in physics, and for that reason he was a great teacher and The Physicists Physcist
 
I would not say that any formalism is preferred. Each formalism has several advantages and disadvantages, so it depends what you want to do exactly.
 

Thread 'Quantum Entanglement is a Kinematic Fact, not a Dynamical Effect'

Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
View full post »

Thread 'Quantum behaviour of an electron around a positively charged sphere'

If we release an electron around a positively charged sphere, the initial state of electron is a linear combination of Hydrogen-like states. According to quantum mechanics, evolution of time would not change this initial state because the potential is time independent. However, classically we expect the electron to collide with the sphere. So, it seems that the quantum and classics predict different behaviours!
View full post »

Thread 'Does a qubit break interference in the double slit experiment?'

According to recent podcast between Jacob Barandes and Sean Carroll, Barandes claims that putting a sensitive qubit near one of the slits of a double slit interference experiment is sufficient to break the interference pattern. Here are his words from the official transcript: Is that true? Caveats I see: The qubit is a quantum object, so if the particle was in a superposition of up and down, the qubit can be in a superposition too. Measuring the qubit in an orthogonal direction might...
View full post »

Similar threads

A General Covariance in Quantum Field Theory
Replies
11
Views
1K
Heisenberg Picture Formalism: Rewriting Operators in Covariance
Replies
3
Views
2K
I Witten’s paper: "A Note On The Canonical Formalism for Gravity" LQG
Replies
16
Views
6K
A Number of particles in canonical ensemble
Replies
9
Views
2K
A Covariance of equal time commutation relations
Replies
3
Views
2K
A Quantum statistical canonical formalism to find ground state at T
Replies
3
Views
1K
A Covariant form of Maxwell's (inhomogeneous) equations (in GR)
Replies
9
Views
629
Why quantum mechanics looks so different from classical one?
Replies
27
Views
5K
B What happens when 2 beams of light interact?
Replies
4
Views
1K
B A covariant vs contravariant vector?
Replies
5
Views
2K

Hot Threads

Recent Insights

Back
Top