Publications

On this page, you will find a listing of my published work (in refereed journals). Preprints of all of these, and newer, as yet unpublished, work can be found the the preprint server.
Publications of 2017
Generating quantum states through spin chain dynamics
Alastair Kay
New J. Phys. 19, 043019.
Tailoring Spin Chain Dynamics for Fractional Revivals
Alastair Kay
Quantum 1, 24.
Publications of 2016
Fidelity Measures in Asymmetric Quantum Cloning
Alastair Kay
Quant. Inform. Comput. 16, 991.
Quantum Error Correction for Noisy Quantum Wires
Alastair Kay
Phys. Rev. A 93, 042320.
Publications of 2015
The Degree of Quantum Correlation Required to Speed-up a Computation
Alastair Kay
Phys. Rev. A 92, 062329.
Publications of 2014
Characterising the Performance of XOR Games and the Shannon Capacity of Graphs
Ravishankar Ramanathan, Alastair Kay, Gláucia Murta, Paweł Horodecki
Phys. Rev. Lett. 113, 240401 .
Implications of ignorance for quantum-error-correction thresholds
Alastair Kay
Phys. Rev. A 89, 032328.
Photonic coherent state transfer with Hamiltonian dynamics
Steffan Weimann, Alastair Kay, Robert Keil, S. Nolte & Alexander Szameit
Optics Letters 39, 123.
Publications of 2013
Comment on "Adiabatic quantum computation with a one-dimensional projector Hamiltonian"
Alastair Kay
Phys. Rev. A, 88, 046301.
Limited measurement dependence in multiple runs of a Bell test
James Pope & Alastair Kay
Phys. Rev. A, 88, 032110.
Optimal Asymmetric Quantum Cloning
Alastair Kay, Ravishankar Ramanathan & Dagomir Kaszlikowski
Quant. Inf. Comput. 13, 880.
Decoherence-assisted transport in quantum networks
Adriana Marais, Ilya Sinayskiy, Alastair Kay, Francesco Petruccione & Artur Ekert
New J. Phys. 15, 013038.
Coherent quantum transport in photonic lattices
Armando Perez-Leija, Robert Keil, Alastair Kay, Hector Moya-Cessa, Stefan Nolte, Leong-Chuan Kwek, Blas Rodríguez-Lara, Alexander Szameit & Demetrios Christodoulides
Phys. Rev. A 87, 012309.
Publications of 2012
The effects of reduced "free will" on Bell-based randomness expansion
Dax Koh, Michael Hall, Setiawan, James Pope, Chiara Marletto, Alastair Kay, Valerio Scarani & Artur Ekert
Phys. Rev. Lett. 109, 160404.
Publicity: Coverage of this work by various media outlets including The Economist, LiveScience, PhysOrg and Science Codex is aggregated here.
Using Separable Bell-Diagonal States to Distribute Entanglement
Alastair Kay
Phys. Rev. Lett. 109, 080503.
Turing, Ciphers and Quanta
James Pope, Alastair Kay & Artur Ekert
Phil. Trans. R. Soc. A 370, 3418.
How to Counteract Systematic Errors in Quantum State Transfer
Chiara Marletto, Alastair Kay & Artur Ekert
Quantum Inf. Comput. 12, 648.
Publications of 2011
The Capabilities of a Perturbed Toric Code as a Quantum Memory
Alastair Kay
Phys. Rev. Lett. 107, 270502.
Publicity: here
The Basics of Perfect Communication through Quantum Networks
Alastair Kay
Phys. Rev. A 84, 022337.
Local Realism of Macroscopic Correlations
Ravishankar Ramanathan, Tomasz Paterek, Alastair Kay, Pawel Kurzyński, & Dagomir Kaszlikowski
Phys. Rev. Lett. 107, 060405.
Publicity: Guest blog for Scientific American
Optimal Detection of Entanglement in GHZ States
Alastair Kay
Phys. Rev. A 83, 020303(R).
Perfect Quantum Routing in Regular Spin Networks
Peter Pemberton-Ross & Alastair Kay
Phys. Rev. Lett. 106, 020503.
Publications of 2010
Arboreal Bound Entanglement
Alastair Kay
J. Phys. A: Math. Theor. 43, 495301.
Quantum Control Theory for State Transformations: Dark States and their Enlightenment
Peter Pemberton-Ross, Alastair Kay & Sophie Schirmer
Phys. Rev. A 82, 042322.
Limitations of Passive Protection of Quantum Information
Fernando Pastawski, Alastair Kay, Norbert Schuch & Ignacio Cirac
Quantum Inf. Comput. 10, 580.
A Review of Perfect, Efficient, State Transfer and its Application as a Constructive Tool
Alastair Kay
Int. J. Quantum Inform. 8, 641.
Computation on Spin Chains with Limited Access
Alastair Kay & Peter Pemberton-Ross
Phys. Rev. A 81, 010301(R).
Publications of 2009
Role of Rotational Invariance in the Properties of Hamiltonians
Alastair Kay
Phys. Rev. A 80, 040301(R).
How long can a quantum memory withstand depolarizing noise?
Fernando Pastawski, Alastair Kay, Norbert Schuch & Ignacio Cirac
Phys. Rev. Lett. 103, 080501.
Optimal Cloning and Singlet Monogamy
Alastair Kay, Dagomir Kaszlikowski & Ravishankar Ramanathan
Phys. Rev. Lett. 103, 050501.
Interfacing with Hamiltonian Dynamics
Alastair Kay
Phys. Rev. A. 79, 042330.
The Non-Equilibrium Reliability of Quantum Memories
Alastair Kay
Phys. Rev. Lett. 102, 070503.
Publications of 2008
Reproducing Spin Lattice Models in Strongly Coupled Atom-Cavity Systems
Alastair Kay & Dimitris Angelakis
Euro. Phys. Lett. 84, 20001.
The Computational Power of Symmetric Hamiltonians
Alastair Kay
Phys. Rev. A, 78, 012346.
An N-Qubit Entanglement Witness Based on N-point Correlation Functions
Dagomir Kaszlikowski & Alastair Kay
New J. Phys. 10, 053026.
Bounding Fault-Tolerant Thresholds for Purification and Quantum Computation
Alastair Kay
Phys. Rev. A, 77, 052319.
Publications of 2007
Weaving light-matter qubits into a one way quantum computer
Dimitris Angelakis & Alastair Kay
New J. Phys, 10, 023012.
Publicity: March 2010: Ranked in top 10 of quantum computing papers.
A QMA-Complete Translationally Invariant Hamiltonian Problem and the Complexity of Finding Ground State Energies in Physical Systems
Alastair Kay
Phys. Rev. A 76, 030307(R).
Multipartite Purification Protocols: Upper and Optimal Bounds
Alastair Kay & Jiannis Pachos
Phys. Rev. A 75, 062307.
Publications of 2006
Optimal Purification of Thermal Graph States
Alastair Kay, Jiannis Pachos, Wolfgang Dür & Hans Briegel
New J. Phys. 8, 147.
Unifying Quantum State Transfer and Spin Amplification
Alastair Kay
Phys. Rev. Lett. 98, 010501.
Publications of 2005
Perfect State Transfer: Beyond Nearest-Neighbor Couplings
Alastair Kay
Phys. Rev. A 73, 032306.
Local Cloning of Arbitrarily Entangled Multipartite States
Alastair Kay & Marie Ericsson
Phys. Rev. A 73, 012343.
Geometric Effects and Computation in Spin Networks
Alastair Kay & Marie Ericsson
New J. Phys. 7, 143.
Graph State Preparation and Cluster Computation with Global Addressing of Optical Lattices
Alastair Kay, Jiannis Pachos & Charles Adams
Phys. Rev. A 73, 022310.
Quantum Information and Triangular Optical Lattices
Alastair Kay, Derek K. K. Lee, Jiannis K. Pachos, Martin B. Plenio, Moritz E. Reuter & Enrique Rico
Optics and Spectroscopy, 99, 355.
Publications of 2004
Perfect Transfer of Arbitrary States in Quantum Spin Networks
Matthias Christandl, Nilanjana Datta, Tony C. Dorlas, Artur Ekert, Alastair Kay, Andrew J. Landahl
Phys. Rev. A 71, 032312.
Quantum Computation in Optical Lattices via Global Addressing
Alastair Kay & Jiannis Pachos
New J. Phys. 6, 126.