CQC2T Seminar (UNSW Sydney): Coherent spin control of s-, p-, d- and f-electrons in a silicon quantum dot

Old Main Building, UNSW Room G59, Old Main Building, UNSW Kensington Campus, NSW, Australia

Speaker - Ross Leon, UNSW Sydney: Once the periodic properties of atoms were unveiled, chemical bonds could be understood in terms of the valence of atoms. Ideally, this rationale would extend to quantum dots,and quantum computation would be performed by merely controlling electrons in the outer shell. Imperfections in the semiconductor material, even at the [...]

CQC2T Seminar (UNSW Sydney): Detecting single infrared photons with 95% system efficiency

Old Main Building, UNSW Room G59, Old Main Building, UNSW Kensington Campus, NSW, Australia

Speaker - Ian Berkman, UNSW Sydney: The past decade has seen an astonishing increase in interest in single photon detector technologies with high detection efficiency and fast reset times. Besides single-photon detectors being one of the key elements in quantum optics experiments, a major driver of the current research into achieving a high efficiency performance [...]

CQC2T Seminar (UNSW Sydney) Coupled erbium ions in silicon

Old Main Building, UNSW Room G59, Old Main Building, UNSW Kensington Campus, NSW, Australia

Speaker - Dr Chunming Yin: Erbium has been use widely in fibre optics technology for its telecom wavelength optical transition and it has proven to have long spin life-time and coherence time . Optical access to single erbium ions in silicon is appealing for integrating spin devices by coupling distant single spins using silicon-based optical cavities. [...]

CQC2T Seminar (UNSW Sydney): Development of 3D P in Si quantum computing architecture for error correction

Old Main Building, UNSW Room G59, Old Main Building, UNSW Kensington Campus, NSW, Australia

Speaker - Mr Mitchell Kiczynski, UNSW Sydney: Phosphorus donor devices in silicon fabricated using STM hydrogen resist lithography are typically fabricated in a 2D design using a single lithographic layer. However in order to achieve quantum error correction with a surface code architecture we need to be able to fabricate devices in three dimensions using [...]

CQC2T Seminar (UNSW Sydney): A silicon quantum-dot-coupled nuclear spin qubit

Old Main Building, UNSW Room G59, Old Main Building, UNSW Kensington Campus, NSW, Australia

Speaker - Dr Wister Huang: Nuclear spins in the solid state have long been envisaged as a platform for quantum computing, due to their long coherence times and excellent controllability. Measurements can be performed via localized electrons, for example those in single atom dopants or crystal defects. In quantum dots, on the other hand, the [...]

CQC2T Seminar (UNSW Sydney): Charge detection mechanism study of single erbium ion in a silicon transistor by pulsed light

Old Main Building, UNSW Room G59, Old Main Building, UNSW Kensington Campus, NSW, Australia

Speaker -  Mr Guongchong Hu, UNSW Sydney: Here we would report the charge detection mechanism of a single erbium ion in a silicon transistor by pulsed light. Erbium atoms were implanted in a silicon transistor and then the device was cooled down to 4K. In the continuous wavelength scan, we saw a binary signal when [...]

CQC2T Seminar (UNSW Sydney): Nagaoka ferromagnetism in a quantum dot plaquette

Old Main Building, UNSW Room G59, Old Main Building, UNSW Kensington Campus, NSW, Australia

Speaker - Dr Juan Pablo Dehollain, UTS: The analytical tractability of Nagaoka ferromagnetism makes it a convenient model to explore the capabilities of quantum simulators of collective electron interactions. However, the small ground-to-excited state energy compared to electron interactions, as well as the difficulty of measuring magnetization in few particle devices, have made the Nagaoka [...]

Pint of Science Australia

#PintAU19 is taking place in 19 cities across Australia over the 20th, 21st and 22nd of May 2019. https://pintofscience.com.au/