Theoretical Study decoherence in quantum computing subspace View Homepage


Ontology type: schema:MonetaryGrant     


Grant Info

YEARS

2011-2013

FUNDING AMOUNT

350000 CNY

ABSTRACT

Decoherence is a major obstacle to the realization of quantum information processing and quantum computing. To overcome the effects of decoherence, various methods have been developed, which decoherence-free subspace is to overcome the quantum system after an effective means of symmetry decoherence, quantum information provides a safe haven. The project on the basis of the existing research on the following main three issues: (1) study different quantum systems decoherence mechanisms and mathematical expressions, decoherence-free subspace explore constituent (such as non-Markov Systems and multi-level system, etc.), preparation of proposed quantum state decoherence-free programs. Research (2) Currently, no decoherence in quantum computing subspace is mainly aimed at the collection phase decoherence. We will combine the particular physical system, based on decoherence-free subspace super singlet state constitution proposed to overcome the general set of quantum decoherence computing solutions enable quantum information to avoid more general set of decoherence in. (3) The decoherence-free subspace methods and other methods to overcome decoherence (such as quantum dynamical decoupling, geometry and quantum phase feedback) is proposed by combining effective and easy to quantum computing scheme experimentally realized. More... »

URL

http://npd.nsfc.gov.cn/projectDetail.action?pid=11074079

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