Sumários
The 2D Bose gas, in and out of equilibrium
4 dezembro 2015, 14:00 • Yasser Omar
Jean Dalibard, Collège de France
The physics of many-body systems strongly depends on their dimensionality. With the realization of quantum wells for example, it has been possible to produce two-dimensional gases of electrons, which exhibit properties that dramatically differ from the standard three-dimensional case, some of them still lacking a full understanding.
During the last decade, a novel environment has been developed for the study of low-dimensional phenomena. It consists of cold atomic gases that are confined in tailor-made electromagnetic traps. The talk will discuss some experimental aspects of this research, including dynamical features like the emergence of coherence in the gas when it is rapidly cooled across the superfluid transition.
Towards Networked Quantum Memories on Photonic Integrated Circuits
27 novembro 2015, 14:00 • Yasser Omar
Dirk Englund, Massachusetts Institute of Technology
We discuss progress towards the development of on-chip quantum networks of multiple spin qubits in nitrogen vacancy (NV) centers in diamond. This talk will describe NV-nanocavity systems in the strong Purcell regime with optical quality factors approaching 10,000 and electron spin coherence times approaching milliseconds; implantation of NVs with nanometer-scale apertures into the cavity field maximum; hybrid on-chip networks for integration of multiple functional NV-cavity systems; and techniques for high-yield integration of superconducting nanowire single photon detectors on-chip.
Note: class taught on 30-11-2015.
Quantum-enhanced Sensing with Diamond
27 novembro 2015, 10:00 • Yasser Omar
Dirk Englund (Massachusetts Institute of Technology)
Note: class taught on 30-11-2015.
Visit by Alipasha Vaziri cancelled
20 novembro 2015, 14:00 • Yasser Omar
Visit by Alipasha Vaziri cancelled.