Two qubits in action, new step towards the quantum computerNature
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Topological Quantum Computer. Available online: https://en.wikipedia.org/wiki/Topological_quantum_computer (accessed on 1 January 2021). Pachos, J.K. Introduction to Topological Quantum Computation; Cambridge University Press: Cambridge, UK, 2012. [Google Scholar] Wang, Z. Topological Quantum Comput...
1-qubit gate actiongate q[i]; 2-qubit CNOT gate listcx 2-qubit CNOT gate actioncx q[control], q[target]; measurement operation listmeasure, bloch measurement operation actionoperation q[i]; It is much easier to dig into the internals of how the quantum computer computes by seeing and tr...
In this sense, if there are only classical bits (for example, qubits that are either [10] or [01]) then measurement does not damage the system. This means that one can replicate classical data and manipulate it on a quantum computer just as one could do on a classical computer. The ...
the risk significantly, since if realistic quantum computer is ultimately implemented, it cannot directly break the quantum-safe mechanism. On the other hand, if a problem with the quantum-safe mechanism is found in the interim, then the Diffie-Hellman algorithm affords some medium-term protection...
proposed quantum computation task can be achieved counterfactually even if the computer is not run13. What's more, since Noh proposed the first counterfactual quantum key distribution (CQKD) in 200914, counterfactual quantum cryptography has been studied extensively both theoretically15,16 and experimen...
This information is manipulated via quantum logic gates, in analogy to the logic gates in a conventional “classical” computer. The most important logic gates include single qubit operations such as the Hadamard gate, which generates superposition states |0〉±|1〉 from the basis states |0〉 ...
Quantum entanglement is a phenomenon in quantum physics, which is so confounding that Albert Einstein described it as a "spooky action at a distance" in 1948. Scientists found that when two entangled particles are separated, one particle can somehow affect the action of the far-off twin instantl...