Category: Quantum Mechanics

Quantum cognition… Quantum cosmos… Classical humans…
By examining our minds at a quantum level, we change them, and by changing them, we change the reality that shapes them. At least this is what the theory of quantum cognition says about what thinking is all about. (1) A weird idea. But not less weird than quantum mechanics itself. We constantly think. And […]

Quantum… time? Quantum… cosmos?!
An international group of physicists led by Stevens Institute of Technology, University of Vienna and University of Queensland reveal the quantum properties of time, whereby the flow of time doesn’t observe a straight arrow forward, but one where cause and effect can coexist both in the forward and backward direction. To show this scenario, researchers […]

Nproblems… Understanding nothing…
Physicists are proposing a new model that could demonstrate the supremacy of quantum computers over classical supercomputers in solving optimization problems. They demonstrate that just a few quantum particles would be sufficient to solve the mathematically difficult Nqueens problem in chess even for large chess boards. (1) Solving problems with less. Reaching at the end […]

Quantum computers: Meet my new computer. Different than the old computer…
In theory, quantum computers can do anything that a classical computer can. In practice, however, the quantumness in a quantum computer makes it nearly impossible to efficiently run some of the most important classical algorithms. The traditional gradeschool method for multiplication requires n^2 steps, where n is the number of digits of the numbers you’re multiplying. For […]

Going back in time… With no change…
We cannot reverse the arrow of time any more than we can erase all our wrinkles or restore a shattered teacup to its original form. Or can we? An international team of scientists led by the U.S. Department of Energy’s (DOE) Argonne National Laboratory managed to return a computer briefly to the past. To achieve […]
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