Author(s): C. Di Franco and D. Ballester
Bellman’s optimality principle has been of enormous importance in the development of whole branches of applied mathematics, computer science, optimal control theory, economics, decision making, and classical physics. Examples are numerous: dynamic programming, Markov chains, stochastic dynamics, cal…
[Phys. Rev. A 85, 010303] Published Mon Jan 09, 2012
Source: http://link.aps.org/doi/10.1103/PhysRevA.85.010303
Author(s): Keisuke Fujii and Tomoyuki Morimae
Recently, Li et al. [ Phys. Rev. Lett. 107 060501 (2011)] have demonstrated that topologically protected measurement-based quantum computation can be implemented on the thermal state of a nearest-neighbor two-body Hamiltonian with spin-2 and spin-3/2 particles provided that the temperature is small…
[Phys. Rev. A 85, 010304] Published Mon Jan 23, 2012
Source: http://link.aps.org/doi/10.1103/PhysRevA.85.010304
Author(s): Chang Liu, J. F. Chen, Shanchao Zhang, Shuyu Zhou, Yoon-Ho Kim, M. M. T. Loy, G. K. L. Wong, and Shengwang Du
We generate narrow-band frequency-tunable entangled photon pairs from spontaneous four-wave mixing in three-level cold atoms and study their two-photon quantum interference after a beam splitter. We find that the path-exchange symmetry plays a more important role in the Hong-Ou-Mandel interference t…
[Phys. Rev. A 85, 021803] Published Mon Feb 13, 2012
Source: http://link.aps.org/doi/10.1103/PhysRevA.85.021803
Author(s): Christoph Lemell, Konstantinos I. Dimitriou, Xiao-Min Tong, Stefan Nagele, Daniil V. Kartashov, Joachim Burgdörfer, and Stefanie Gräfe
We analyze the formation of the low-energy structure (LES) in above-threshold ionization spectra in strong-field ionization by midinfrared laser pulses by using both quasiclassical and quantum approaches. We show this structure to be largely classical in origin, resulting from a two-dimensional focu…
[Phys. Rev. A 85, 011403] Published Fri Jan 20, 2012
Source: http://link.aps.org/doi/10.1103/PhysRevA.85.011403
Author(s): Olivier Pinel, Julien Fade, Daniel Braun, Pu Jian, Nicolas Treps, and Claude Fabre
Multimode Gaussian quantum light, which includes multimode squeezed and multipartite quadrature entangled light, is a very general and powerful quantum resource with promising applications in quantum information processing and metrology. In this paper, we determine the ultimate sensitivity in the es…
[Phys. Rev. A 85, 010101] Published Fri Jan 06, 2012
Source: http://link.aps.org/doi/10.1103/PhysRevA.85.010101
