Continuous variable quantum information; Entanglement and quantum correlations; Foundations of quantum theory; Open quantum systems and decoherence
单位：The University of Nottingham
研究方向：Continuous variable quantum information; Entanglement and quantum correlations; Foundations of quantum theory; Open quantum systems and decoherence
We are currently entering a new technological era, where the fundamental properties of quantum systems are exploited in applications such as super-fast computation, high-precision metrology and secure cryptography. Quantum information science is a young and eclectic field joining quantum physics with information and computation, probability and statistics, and control theory.
Quantum mechanics has arguably been the most successful scientific theory of the 20th century. As miniaturisation is moving to smaller and smaller scales, it becomes clear that the ultimate carriers of information are quantum systems such as atoms and photons, the building blocks of nature. However, this information does not obey the rules of usual 0 and 1 bits, but is encoded in the state of quantum systems, the simplest one being a two-dimensional system called a qubit. At the heart of many quantum information applications is the notion of entanglement between systems, which is a correlation of a purely quantum nature. Exploiting entanglement, we can build encrypting devices for secure communication; we can implement mind-baffling experiments such as quantum teleportation; and we can solve computational problems exponentially faster than the most advanced current supercomputer.
At Nottingham we have a young and active team of researchers studying a wide range of topics in quantum information science.
Continuous variable quantum information
Entanglement and quantum correlations
Foundations of quantum theory
Open quantum systems and decoherence
Quantised detector networks
Quantum communication protocols
Quantum meterology and engineering
Quantum optical implementations
Quantum statistics and control
Quantum stochastic calculus
Relativistic quantum information
Nottingham has a prestigious tradition in Quantum Stochastics and Information as the birthplace of the Quantum Stochastic Calculus developed by R. Hudson and K.R. Parthasarathy, and of the theory of Quantum Filtering and Quantum Feedback Control initiated by V. P. Belavkin. The group has close links to the Nottingham Cold Atoms group and a joint "QSI and Cold Atoms" seminar series is run by the two groups. In 2006 Nottingham hosted the QPIC Symposium which was also the closing conference of the EU Research Training Network. The fundamental role of quantum effects in complex and even living systems was unveiled in a recent European workshop on "Signatures of Quantumness in Complex Systems" that was convened in Nottingham. The group is also involved in the organisation of a programme in quantum control at the Newton Institute in Cambridge in 2014. The group's postgraduate students are also very active, having organised two recent conferences funded by the LMS - Quantum Square and Quantum Fields, Gravity and Information.
EPSRC has selected "Developing Quantum Physics for New Quantum Technologies" as a Physics Grand Challenge, and quantum information science is signposted as a growth area. Research in the group is supported by grants from the Engineering and Physical Sciences Research Council (EPSRC) and other sources.