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26 January 2021
 
  » pubmed » pmid12443450

 Article overview


Minimum energy requirements for quantum computation
Julio Gea-Banacloche ;
Date 18 Nov 2002
Journal Phys Rev Lett, 89 (21), 217901
AbstractA lower bound on the amount of energy needed to carry out an elementary logical operation on a quantum computer, with a given accuracy and in a given time, is derived. The bound arises from the requirement that the controls used to manipulate the qubits, which ultimately are themselves quan-tum mechanical systems, must nonetheless be classical to a sufficiently good approximation; it is expected to hold under a wide variety of conditions, and independently of the nature of the physical systems used to encode the qubits. This could have important consequences for very large-scale quantum computations.
Source PubMed, pmid12443450
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