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- M. B. dâ€™Arcy, Rachel M Godun, Donatella Cassettari, G. S. Summy
- 2003

We experimentally demonstrate a method for selecting small regions of phase space for kicked rotor quantum chaos experiments with cold atoms. Our technique uses quantum accelerator modes toâ€¦ (More)

We experimentally explore the underlying pseudoclassical phase space structure of the quantum -kicked accelerator. This was achieved by exposing a Bose-Einstein condensate to the spatially corrugatedâ€¦ (More)

- I. Dana, V. Ramareddy, I. Talukdar, G. S. Summy
- Physical review letters
- 2008

Quantum-resonance ratchets associated with the kicked particle are experimentally realized for arbitrary quasimomentum using a Bose-Einstein condensate (BEC) exposed to a pulsed standing light wave.â€¦ (More)

- Catherine L. Webb, Rachel M Godun, +4 authors Katherine Burnett
- 1999

We report on the demonstration of Berryâ€™s phase in an atomic state interacting with a laser field. We draw an analogy between this system and that of a spin interacting with a directionally varyingâ€¦ (More)

- M. K. Oberthaler, Rachel M Godun, M. B. dâ€™Arcy, G. S. Summy, Katherine Burnett
- 1999

We have realized a quantum accelerator mode using a system consisting of ultracold cesium atoms falling through a pulsed standing wave of off resonant light. We present a picture of this system basedâ€¦ (More)

- M.B. d'Arcy, Rachel M Godun, M. K. Oberthaler, Donatella Cassettari, G. S. Summy
- Physical review letters
- 2001

We present detailed observations of the quantum delta-kicked rotor in the vicinity of a quantum resonance. Our experiment consists of an ensemble of cold cesium atoms subject to a pulsed off-resonantâ€¦ (More)

- Sophie Schlunk, M.B. d'Arcy, Siobhan Gardiner, G. S. Summy
- Physical review letters
- 2003

Using a freely falling cloud of cold cesium atoms periodically kicked by pulses from a vertical standing wave of laser light, we present the first experimental observation of high-order quantumâ€¦ (More)

- Rabin K Shrestha, Jianming Ni, W. K. Lam, G. S. Summy, Sandro Wimberger
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2013

We report measurements of dynamical tunneling rates of a Bose-Einstein condensate across a barrier in classical phase space. The atoms are initially prepared in quantum states that extend over aâ€¦ (More)

- Rachel M Godun, M. B. dâ€™Arcy, M. K. Oberthaler, G. S. Summy, Katherine Burnett
- 2000

We describe an atom-optical technique for producing large changes in the momentum of cold atoms using a pulsed standing wave of off-resonant light. Experimental results are presented showing how theâ€¦ (More)

- M. B. dâ€™Arcy, G. S. Summy, Sari Fishman, I. Guarneri
- 2005

We discuss recent experimental and theoretical investigations of quantum dynamics in periodically kicked chaotic systems. These investigations are centred on a modified version of the classic -kickedâ€¦ (More)