Operating Quantum States in Single Magnetic Molecules: Implementation of Grover’s Quantum Algorithm
Nov 2, 2017
5 pages
Published in:
- Phys.Rev.Lett. 119 (2017) 18, 187702
- Published: Nov 2, 2017
Citations per year
Abstract: (APS)
Quantum algorithms use the principles of quantum mechanics, such as, for example, quantum
superposition, in order to solve particular problems outperforming standard computation. They are
developed for cryptography, searching, optimization, simulation, and solving large systems of linear
equations. Here, we implement Grover’s quantum algorithm, proposed to find an element in an unsorted
list, using a single nuclear 3=2 spin carried by a Tb ion sitting in a single molecular magnet transistor.
The coherent manipulation of this multilevel quantum system (qudit) is achieved by means of electric
fields only. Grover’s search algorithm is implemented by constructing a quantum database via a multilevel
Hadamard gate. The Grover sequence then allows us to select each state. The presented method is of
universal character and can be implemented in any multilevel quantum system with nonequal spaced
energy levels, opening the way to novel quantum search algorithms.- Condensed Matter, Materials & Applied Physics
- Quantum Information, Science & Technology
- General Physics
- Quantum algorithms
- Quantum computation
- Quantum gates
- Spintronics
- gate
- nucleus: spin
- quantum algorithm
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