Article (Scientific journals)
Controlled full adder or subtractor by vibrational quantum computing
Bomble, L.; Lauvergnat, D.; Remacle, Françoise et al.
2009In Physical Review. A, Atomic, molecular, and optical physics, 80 (2)
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Abstract :
[en] A controlled full addition or subtraction can be realized by a unitary transformation on a register of four qubits. The fourth qubit is then used as a control qubit to enforce the addition or the subtraction of two binary digits and a carry or a borrow. The transformation can be decomposed into six elementary gates. The network differs from the adder network of four elementary gates by including two new controlled-NOT gates. The scheme is general and its implementation using vibrational computing has the advantage that the single global transformation that connects the inputs to the outputs can be driven in one step by a single laser shot. This decreases the time of operation and allows for a better use of the optical resources and for an improvement of the fidelity. The laser pulses are optimized by optimal control theory.
Disciplines :
Chemistry
Author, co-author :
Bomble, L.
Lauvergnat, D.
Remacle, Françoise  ;  Université de Liège - ULiège > Département de chimie (sciences) > Laboratoire de chimie physique théorique
Desouter-Lecomte, Michèle ;  Université de Liège - ULiège > Département de chimie (sciences) > Laboratoire de chimie physique théorique
Language :
English
Title :
Controlled full adder or subtractor by vibrational quantum computing
Publication date :
2009
Journal title :
Physical Review. A, Atomic, molecular, and optical physics
ISSN :
1050-2947
eISSN :
1094-1622
Publisher :
American Physical Society, College Park, United States - Maryland
Volume :
80
Issue :
2
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 05 January 2010

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