Potential breakthroughs are totally revolutionary.
Quantum computers will be billions of times faster than
todayÂ’s machines.
Quantum cryptography promises perfectly secure
communications. You cannot crack this, we are told, unlike
all the codes the world has known ever since human beings
started passing secret messages around.
When you try to eavesdrop on quantum cryptography communications in future,
you cannot avoid being detected You have been warned!
http://cam.qubit.org/users/artur/Popular/mooncakes.pdf
Artur Ekert, Leigh Trapnell Professor of Quantum Physics
, DAMTP, University of Cambridge
Fellow of King's College 2.
quantum lah group in NUS funny name but damn serious biz----affecting SG live or dead.
3.They
won National Science Award 2006."For their outstanding contributions to theoretical research on quantum coherence and its applications in quantum information science."
Quantum Information Science is an emerging multidisciplinary field to which numerous global projects have been devoted in recent years, including the Quantum Information Technology (QIT) initiative at the Faculty of Science of the National University of Singapore.
The team has advanced the understanding of coherent quantum phenomena and how the governing fundamental laws of physics can be harnessed to dramatically improve the acquisition, transmission, and processing of information.
The team's research ranges from the invention of new methods of secure communication to the study of geometric phases in mixed states, from trade-offs between single-particle and multi-particle interference to entanglement detection via Bell-type inequalities, including higher dimensional generalisation. Their results have been published in leading journals, such as Physical Review Letters, and the QIT theory group has become known as one of the strongest in the field.
One highlight is the introduction of a new class of protocols for quantum key distribution for which the security analysis is based on the full knowledge of the properties of the quantum channel, rather than on estimates of the transmission error rate. One of the novel protocols is the Singapore Protocol. In contrast to other schemes, the Singapore Protocol utilises all data for the key generation, is 25% more efficient under ideal circumstances than its competitor, and can be implemented even if the channel is too noisy for the standard protocols. Together, the complete characterisation of the channel and the key generation procedure amount to a new paradigm in quantum cryptography.
Other highlights are an exploratory study of the possibility of manipulating quantum systems through geometric phases, which are robust in noisy environments, and the investigation of the entanglement between many bodies, which is of great use for quantum computation.
The experimental realization of these quantum coherent phenomena, such as the implementation of secure communication and the detection of quantum entanglement in atomic systems, is possible. In particular, the resulting developments in secure communication may also lead to a significant boost in industrial exploitation of the technology.
For their outstanding contribution to theoretical research on quantum coherence and its applications in quantum information science, Professor Oh Choo Hiap, Professor Berthold-Georg Englert, Associate Professor Kwek Leong Chuan and Assistant Professor Dagomir Kaszlikowski, are awarded the National Science Award 2006.
