Understanding Superposition Physically and Mathematically The concept of superposition manifests both in classical and quantum physics These both have their root in the linearity of the abstract vector spaces used in system descriptions
Schrödingers Cat and the Qbit - Physics Forums Figure 1 (taken from [2]) This is usually where the introduction of superposition via Schr dinger’s Cat ends, but it doesn’t fully capture the weirdness of superposition What’s the difference between superposition and simple ignorance about the state of the cat hidden from sight inside the box? What if my cat-killing trigger was classical instead of quantum, would that somehow change
How is superposition demonstrated? • Physics Forums "They" don't Superposition is basis dependent; it's an artifact of how the system is represented in math It's not something that can be demonstrated physically What can be demonstrated physically is that, for example, if a large number of particles are prepared with their spins all up about one axis, measuring the spin about a different axis will have some nonzero probability of each result
Question about superposition and measurement • Physics Forums The discussion centers on the concepts of superposition and measurement in quantum mechanics, with a focus on the misunderstanding that particles exist solely in either a complete superposition or a definite state It is clarified that the transition from superposition to a definite state involves the properties of particles rather than the particles themselves The importance of understanding
Is it really superposition, or do we just not know its position? A quantum state is like a vector It may be known, but it is also a superposition of other states E g a known energy state, where a measurement of the system's energy would result in a definite value is a superposition of infinitely many position states, where a measurement of position would yield different values with different probabilities
(A bit for fun) Putting a Human in Superposition - Physics Forums The discussion explores the theoretical concept of placing a human in a state of quantum superposition, acknowledging the absurdity of the idea while examining its implications for understanding quantum mechanics (QM) Participants consider scenarios where isolation from external interactions, such as being in a supervoid or a Faraday cage, might allow for a human to theoretically achieve
Portal (Approximate) Method of Analysis: Superposition You may use the principle of superposition for gravity and lateral load effects Note: • all dimensions in meters • use ASTM A992 steel, grade 345MPa; Homework Equations If you understand the portal method you know that there are no equations specifically designed to answer this question The equations come from simple statics The Attempt
Top Misconceptions about Virtual Particles - Physics Forums The law of summation is in accord with the principle of superposition—every diagram contributes to the total amplitude for the process Feynman diagrams don’t describe particle scattering – but partial contributions to S-matrix elements