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Atomic and Laser Physics
Credit: Jack Hobhouse

Professor Andrew Daley

Professor of Quantum Physics

Research theme

  • Quantum information and computation
  • Quantum optics & ultra-cold matter

Sub department

  • Atomic and Laser Physics

Research groups

  • Theory of quantum systems
andrew.daley@physics.ox.ac.uk
Clarendon Laboratory, room 316.3
  • About
  • Publications

Andreev Molecules in Semiconductor Nanowire Double Quantum Dots

(2016)

Authors:

Zhaoen Su, Alexandre B Tacla, Moïra Hocevar, Diana Car, Sébastien R Plissard, Erik PAM Bakkers, Andrew J Daley, David Pekker, Sergey M Frolov
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Details from ArXiV

Signatures of Many-Body Localization in a Controlled Open Quantum System

(2016)

Authors:

Henrik P Lüschen, Pranjal Bordia, Sean S Hodgman, Michael Schreiber, Saubhik Sarkar, Andrew J Daley, Mark H Fischer, Ehud Altman, Immanuel Bloch, Ulrich Schneider
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Details from ArXiV

Tunable Electron-Electron Interactions in LaAlO3/SrTiO3 Nanostructures

Physical Review X American Physical Society (APS) 6:4 (2016) 041042

Authors:

Guanglei Cheng, Michelle Tomczyk, Alexandre B Tacla, Hyungwoo Lee, Shicheng Lu, Josh P Veazey, Mengchen Huang, Patrick Irvin, Sangwoo Ryu, Chang-Beom Eom, Andrew Daley, David Pekker, Jeremy Levy
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Dynamical disentangling and cooling of atoms in bilayer optical lattices

(2016)

Authors:

A Kantian, S Langer, AJ Daley
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Entanglement growth and correlation spreading with variable-range interactions in spin and fermionic tunneling models

Physical Review A American Physical Society 93:5 (2016) 053620

Authors:

Anton Buyskikh, Maurizio Fagotti, Johannes Schachenmayer, Fabian Essler, AJ Daley

Abstract:

We investigate the dynamics following a global parameter quench for two one-dimensional models with variable-range power-law interactions: a long-range transverse Ising model, which has recently been realized in chains of trapped ions, and a long-range lattice model for spinless fermions with long-range tunneling. For the transverse Ising model, the spreading of correlations and growth of entanglement are computed using numerical matrix product state techniques, and are compared with exact solutions for the fermionic tunneling model. We identify transitions between regimes with and without an apparent linear light cone for correlations, which correspond closely between the two models. For long-range interactions (in terms of separation distance r, decaying slower than 1/r), we find that despite the lack of a light cone, correlations grow slowly as a power law at short times, and that - depending on the structure of the initial state - the growth of entanglement can also be sublinear. These results are understood through analytical calculations, and should be measurable in experiments with trapped ions.

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