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Is it impossible to clone?
If a physicist were to try and clone you, they would need to produce an exact copy, precisely replicating the position and momentum of every single particle, down to the smallest electron. Unfortunately, it turns out that due to the intricacies of quantum math, cloning is pretty much impossible.
Is it possible to clone atoms?
Scientists have created replicas of individual quantum particles such as atoms and photons with properties almost identical to those of the original. Entangled quantum particles have mutually dependent states; they seem to interact by way of an instantaneous action at a distance.
What does it mean to copy a quantum state?
Process of copying a quantum state with no modification of the original. Quantum cloning is a process that takes an arbitrary, unknown quantum state and makes an exact copy without altering the original state in any way.
How is quantum cloning forbidden by the laws of Physics?
Quantum cloning is forbidden by the laws of quantum mechanics as shown by the no cloning theorem, which states that there is no operation for cloning any arbitrary state | ψ ⟩ A {\\displaystyle {\\displaystyle |\\psi \\rangle _{A}}} perfectly. In Dirac notation, the process of quantum cloning is described by:
How is the output of a quantum cloning machine governed?
Universal quantum cloning (UQC) implies that the quality of the output (cloned state) is not dependent on the input, thus the process is “universal” to any input state. The output state produced is governed by the Hamiltonian of the system. One of the first cloning machines, a 1 to 2 UQC machine, was proposed in 1996 by Buzek and Hillery.
What makes a mixture of quantum states a quantum state?
Knowledge of the quantum state together with the rules for the system’s evolution in time exhausts all that can be predicted about the system’s behavior. A mixture of quantum states is again a quantum state.