Why some scientists don't believe in Quantum physics ?
Answers
Quantum mechanism is a theory that provides structure to quantum physics.
If we use the word "Theory". Then we are not necessarily supposed to get votes from majority that it's correct. As the word *Theory* suggests we don't have enough evidences to prove that thing. Not only quantum theory, but all scientists don't support one single theory on a topic.
Many things in quantum physics are not applicable for the world at gigantic level, they just work for the things at micro level. It's a contradiction to the statement that quantum physics is literally correct, but they still work properly for small things. So,many scientists don't believe in quantum physics.( which is obvious because of theories )
physics suggests that a particle can be at two places at a single time if we look at it from a micro view, But we can't observe directly in real world.
Some things sounds so unrealistic like a particle can rotate in both direction at the same time. But we can prove these things by maths.
Even if we could prove all theories by math that we use at micro level, still many things and theories of macro world will contradict the quantum physics. That's make quantum physics quite unstable.
Answer:
“I think I can safely say that nobody really understands quantum mechanics,” observed the physicist and Nobel laureate Richard Feynman. That’s not surprising, as far as it goes. Science makes progress by confronting our lack of understanding, and quantum mechanics has a reputation for being especially mysterious.
What’s surprising is that physicists seem to be O.K. with not understanding the most important theory they have.
Quantum mechanics, assembled gradually by a group of brilliant minds over the first decades of the 20th century, is an incredibly successful theory. We need it to account for how atoms decay, why stars shine, how transistors and lasers work and, for that matter, why tables and chairs are solid rather than immediately collapsing onto the floor.
Scientists can use quantum mechanics with perfect confidence. But it’s a black box. We can set up a physical situation, and make predictions about what will happen next that are verified to spectacular accuracy. What we don’t do is claim to understand quantum mechanics. Physicists don’t understand their own theory any better than a typical smartphone user understands what’s going on inside the device.
There are two problems. One is that quantum mechanics, as it is enshrined in textbooks, seems to require separate rules for how quantum objects behave when we’re not looking at them, and how they behave when they are being observed. When we’re not looking, they exist in “superpositions” of different possibilities, such as being at any one of various locations in space. But when we look, they suddenly snap into just a single location, and that’s where we see them. We can’t predict exactly what that location will be; the best we can do is calculate the probability of different outcomes.
The whole thing is preposterous. Why are observations special? What counts as an “observation,” anyway? When exactly does it happen? Does it need to be performed by a person? Is consciousness somehow involved in the basic rules of reality? Together these questions are known as the “measurement problem” of quantum theory.
The other problem is that we don’t agree on what it is that quantum theory actually describes, even when we’re not performing measurements. We describe a quantum object such as an electron in terms of a “wave function,” which collects the superposition of all the possible measurement outcomes into a single mathematical object. When they’re not being observed, wave functions evolve according to a famous equation written down by Erwin Schrödinger.
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