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Fast non-Abelian ge...
Fast non-Abelian geometric gates via transitionless quantum driving
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- Zhang, Jiang (author)
- Department of Physics, Shandong University, Jinan, China
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- Kyaw, Thi Ha (author)
- Centre for Quantum Technologies, NUS, Singapore
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- Tong, Dianmin (author)
- Department of Physics, Shandong University, Jinan, China
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- Sjöqvist, Erik (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Quantum information theory
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- Kwek, Leong Chuan (author)
- Centre for Quantum Technologies, NUS, Singapore
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(creator_code:org_t)
- 2015-12-21
- 2015
- English.
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In: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 5
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Abstract
Subject headings
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- A practical quantum computer must be capable of performing high fidelity quantum gates on a set of quantum bits (qubits). In the presence of noise, the realization of such gates poses daunting challenges. Geometric phases, which possess intrinsic noise-tolerant features, hold the promise for performing robust quantum computation. In particular, quantum holonomies, i.e., non-Abelian geometric phases, naturally lead to universal quantum computation due to their non-commutativity. Although quantum gates based on adiabatic holonomies have already been proposed, the slow evolution eventually compromises qubit coher- ence and computational power. Here, we propose a general approach to speed up an implementation of adiabatic holonomic gates by using transitionless driving techniques and show how such a universal set of fast geometric quantum gates in a superconducting circuit architecture can be obtained in an all geometric approach. Compared with standard non-adiabatic holonomic quantum computation, the holonomies ob- tained in our approach tends asymptotically to those of the adiabatic approach in the long run-time limit and thus might open up a new horizon for realizing a practical quantum computer.
Subject headings
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Quantum computation
- geometric phase
- superconducting qubit
- Fysik
- Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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