Previous Seminars

Presented by Professor Hanns-Christoph Nagerl, University of Innsbruck
10 Oct 2017, 07-222

We present our quantum engineering approach to generate ultracold samples of polar molecules in the regime of quantum degeneracy.  Such samples are ideal for quantum simulation purposes with many-body spin systems and for probing novel phases and phase transitions in view of the long-range...

Presented by Barry Sanders, iCORE Chair of Quantum Information Science, University of Calgary
6 Sep 2011, Room 06-407 (conference room)

Quantum measurement schemes aim to surpass the standard quantum limit (essentially due to partition noise) and strive to reach the quantum limit (precision inversely proportional to number of injected particles). Feedback-based schemes are particularly promising: leading particles are detected,...

Presented by Tony Downes (UQ)
30 Aug 2011, Room 06-407 (conference room)

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Presented by Malcolm Kennett (Simon Fraser University)
9 Aug 2011, Room 06-407 (conference room)

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Presented by Matthew Woolley (Universite de Sherbrooke/McGill University, Quebec)
19 Jul 2011, Room 06-407 (conference room)

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Presented by Mark Barker (UQ)
5 Jul 2011, Room 06-407 (conference room)

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Presented by Ross McKenze (UQ)
28 Jun 2011, Room 06-407 (conference room)

Interlayer magnetoresistance as a probe of quantum coherence

Coming soon


Presented by Warwick Bowen (UQ)
21 Jun 2011, Room 06-407 (conference room)

Achieving quantum control of a mesoscopic mechanical oscillator has been an important goal of the quantum physics community for several decades. With rapid progress in micro- and nano-fabrication techniques in the past ten years, this goal is now feasible in a diverse range of physical...

Presented by Dr Andrew Hilliard (Physics department, University of Otago)
14 Jun 2011, Room 06-407 (conference room)

Neutral atoms stored in optical traps provide a versatile platform for fundamental studies of quantum mechanics at the single event level and have potential for application in quantum information processing. With regard to the latter, one possible physical realization of a quantum logic device...

Presented by Anton Frisk Kockum (Chalmers)
9 Jun 2011, Room 06-407 (conference room)

A common experimental setup in circuit QED is to couple one or several qubits to a resonator, and then do a measurement on the qubit by looking at the transmission/reflection of a signal sent to the resonator. In this talk, I will review the work of J. Gambetta et al (PRA 77, 012112 (2008)) and...

Presented by Seth Olsen (UQ)
7 Jun 2011, Room 06-407 (conference room)

Organic dyes with a charge-resonant electronic structure are the focus of current interest due to their applications in biophotonics. The environtment-dependent optical properties of these dyes makes them useful in imaging and biochemical/biophysical research. The value of such studies can be...

Presented by Tim Ralph (UQ)
24 May 2011, Room 06-407 (conference room)

Continuous variable quantum information protocols use quantum operations and measurements acting on states with continuous eigenvalue spectra to perform quantum information tasks such as quantum teleportation, quantum key distribution and quantum processing. An attraction of continuous variable...

Presented by Tod Wright (UQ)
10 May 2011, Room 06-407 (conference room)

The Kosterlitz-Thouless vortex-unbinding mechanism plays a fundamental role in the physics of a variety of two-dimensional systems. The weakly interacting Bose gas belongs to the universality class of the XY spin model, and in two dimensions the physics of the homogeneous Bose superfluid share...

Presented by Chris Wilson
3 May 2011, Room 06-407 (conference room)

In recent years, it has been realized that the strong, dissipationless nonlinearity provided by superconducting Josephson tunnel junctions can be used to generate nonclassical states of light in the microwave regime.  These has led to the rapid development of the fledgling field of...

Presented by Chao Feng (UQ)
19 Apr 2011, Room 06-407 (conference room)

One of the best-known signatures of superfluidity is the presence of frictionless flow. In the archetypal case, a microscopic object is moved through a superfluid at successively higher velocities without...

Presented by Cryil Branciard (UQ)
12 Apr 2011, Room 06-407 (conference room)

Quantum nonlocality, ie the fact that quantum correlations cannot be given “locally causal” explanations (in John Bell’s terminology), is certainly one of the most fascinating and intriguing features of the quantum theory. The study of nonlocality and Bell inequalities now...

Presented by John Teufel (NIST)
5 Apr 2011, Room 06-407 (conference room)

In the longstanding endeavor to access the quantum nature of macroscopic mechanical motion, the experimental challenge is not only that of state preparation, but also one of measurement. The flourishing field of cavity opto - and electro-mechanics, in which an electromagnetic resonance couples...

Presented by Dr Rob Pfeifer (UQ)
29 Mar 2011, Room 06-407 (conference room)

The simulation of systems of anyons offers a significant challenge to the condensed matter physicist. These systems are presently of substantial theoretical and experimental interest due to their potential for universal quantum computation, but due to their non-trivial exchange statistics, the...

Presented by Dr Karen Kheruntsyan (UQ)
22 Mar 2011, Room 06-407 (conference room)

The experimental possibility of detecting small numbers of atoms with high precision is opening new perspectives in the study of fluctuations and correlations in ultracold atomic gases. In this talk I will discuss in situ measurements of atom number fluctuations in small volumes of a quantum gas...

Presented by Dr Jure Kokalj (UQ)
15 Mar 2011, Room 06-407 (conference room)

Strongly correlated systems have presented one of the major theoretical challenges in the last decades. This has stimulated intensive search for adequate numerical methods to evaluate their properties. I will present a numerical method for evaluation of dynamical response functions at...

Presented by Glen Evenbly (UQ)
8 Mar 2011, Room 06-407 (conference room)

It has been almost two decades since White introduced the DMRG algorithm, a variational approach based upon the matrix product state (MPS) tensor network, which has revolutionised the numerical study of D=1 dimensional quantum systems. Since then many more tensor network states have been...

Presented by Dr Tony Wright (Max-Planck-Institute for Solid State Research, Stuttgart)
1 Mar 2011, Room 06-407 (conference room)

Time reversal symmetry protected surface states have been predicted in several two and three dimensional materials. This has lead to some exciting theory, which seems to be unified by the so-called Magneto-Electric effect. However experimental progress has been somewhat frustrated. I will give a...

Presented by A/Prof. Ulrik L. Andersen (Technical University of Denmark)
22 Feb 2011, Room 06-407 (conference room)

The emerging field of plasmonics has received enormous interest due to its unique promises for the way light can be localized beyond the diffraction limit and manipulated at the nanoscale. Quantum plasmonics is the field of employing the unique properties of ...

Presented by A/Prof. Ying-Jer Kao (National Taiwan University)
17 Feb 2011, Room 06-407 (conference room)

Recently, the graphic processing unit (GPU) has emerged as an important tool for scientific computing. In some cases, a GPU can speed up the computation by 10x to 100x, compared to a traditional CPU.  In this talk, I will briefly introduce the computation model of the latest generation of...

Presented by Prof. Markus Oberthaler (Kirchhoff Institute for Physics in Heidelberg)
15 Feb 2011, Room 06-407 (conference room)

The presentation will give an overview of the recent achievement with ultra cold Bose gases in Heidelberg concentrating on the generation of non-classical many particle states. After a short introduction of the experimental system the results on spin-squeezing in external degrees of freedom will...

Presented by Prof. Markus Oberthaler (Kirchhoff Institute for Physics in Heidelberg)
15 Feb 2011, Room 06-407 (conference room)

The presentation will give an overview of the recent achievement with ultra cold Bose gases in Heidelberg concentrating on the generation of non-classical many particle states. After a short introduction of the experimental system the results on spin-squeezing in external degrees of freedom will...