Henry Haselgrove's homepage

 

Welcome to my homepage. I am a physicist specializing in the field of quantum information theory.

In 2006 I finished a PhD at the University of Queensland under the supervision of Michael Nielsen. If you would like to have a look at my thesis, "Reliable Quantum Information Processing", you can download it here.

Below you will find links to my scientific work, including papers, posters and talks. 
 

My email:    
 


 

Journal papers

Each title links to the appropriate page on arXiv.org where the paper can be downloaded

A. Lund, T. Ralph, H. Haselgrove, "Fault-Tolerant Linear Optical Quantum Computing with Small-Amplitude Coherent States", Phys. Rev. Lett. 100:030503 (2008)

H. Haselgrove, P. Rohde, "Trade-off between the tolerance of located and unlocated errors in nondegenrate quantum error-correcting codes", Quant. Inf. Comp. 8(5):0399-0410 (2008)

C. Dawson, H. Haselgrove, M. Nielsen, “Noise thresholds for optical cluster-state quantum computation”, Phys. Rev. A 73:052306 (2006)   

C. Dawson, H. Haselgrove, M. Nielsen, “Noise thresholds for optical quantum computers”, Phys. Rev. Lett. 96:020501 (2006)

C. Dawson, H. Haselgrove, A. Hines, D. Mortimer, M. Nielsen, T. Osborne, “Quantum computing and polynomial equations over the finite field Z2”, Quant. Inf. Comp.  5(2):102-112 (2005)

H. Haselgrove, “Optimal state encoding for quantum walks and quantum communication over spin systems”, Phys. Rev. A 72:062326 (2005). See also online animations.

H. Haselgrove, M. Nielsen, T. Osborne, “Entanglement, correlations, and the energy gap in many-body quantum systems”, Phys. Rev. A 69:032303 (2004)

A. Childs, H. Haselgrove, M. Nielsen, “Lower bounds on the complexity of simulating quantum gates”, Phys. Rev. A 68:052311 (2003)

H. Haselgrove, M. Nielsen, T. Osborne, “Practicality of time-optimal two-qubit Hamiltonian simulation”, Phys. Rev. A 68:042303 (2004)

H. Haselgrove, M. Nielsen, T. Osborne, “Quantum states far from the energy eigenstates of any local Hamiltonian”, Phys. Rev. Lett. 91:210401 (2003)

Pre-print paper

C. Hill, H. Haselgrove, "Universal quantum dynamics from two 2-local Hamiltonians", arXiv:0801.4487  (2008)

Talk slides

[PPT]  “Noise thresholds for optical quantum computers”, IBM Workshop on Fault-Tolerant Quantum Computation, New York, 30 August 2005.
( similar talks were also given on these occasions: University of New Mexico, C.A.S. seminar, Albuquerque, 8 September 2005 ;  University of Queensland, QiSci group meeting, Brisbane, 30 September 2005 ; Australian Defence Force Academy, quantum electronics group meeting, 7 June 2006 )

[PPT] “Entanglement, correlation, and error-correction in the ground states of many-body systems”, Griffith University, Quantum theory seminar, Brisbane, 10 November 2003

 

Posters

[PPT]Entanglement, correlations, and error-correction in the ground states of many-body systems”, Australian Institute of Physics Congress, Canberra, 1 February 2005

[PPT] “Optimal state encoding for quantum walks and quantum communication over spin systems”, Quantum Information Theory: Present Status and Future Directions, Cambridge University, UK, 26 August 2004.

[PPT] “Time-optimal two-qubit gate simulation is impractical”, The 3rd ESF Conference on Quantum Information Theory and Quantum Computing, Erice, Italy, 16 March 2003.