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7 papers · 2 filters
Generic quantum walk using a coin-embedded shift operator
C. M. Chandrashekar
The study of quantum walk processes has been widely divided into two standard variants, the discrete-time quantum walk (DTQW) and the continuous-time quantum walk (CTQW). The conne…
Quantum state discrimination
Stephen M. Barnett, Sarah Croke
It is a fundamental consequence of the superposition principle for quantum states that there must exist non-orthogonal states, that is states that, although different, have a non-z…
A perturbative approach to inelastic collisions in a Bose-Einstein Condensate
R. B. Mann, M. B. Young, I. Fuentes-Schuller
It has recently been discovered that for certain rates of mode-exchange collisions analytic solutions can be found for a Hamiltonian describing the two-mode Bose-Einstein condensat…
One-Way Quantum Computing in the Optical Frequency Comb
Nicolas C. Menicucci, Steven T. Flammia, Olivier Pfister
One-way quantum computing allows any quantum algorithm to be implemented easily using just measurements. The difficult part is creating the universal resource, a cluster state, on…
Nonclassicality without entanglement enables bit commitment
Howard Barnum, Oscar C. O. Dahlsten, Matthew Leifer +1
We investigate the existence of secure bit commitment protocols in the convex framework for probabilistic theories. The framework makes only minimal assumptions, and can be used to…
Symmetry-noise interplay in quantum walk on an n-cycle
Subhashish Banerjee, R. Srikanth, C. M. Chandrashekar +1
Augmenting the unitary transformation which generates a quantum walk by a generalized phase gate G is a symmetry for both noisy and noiseless quantum walk on a line, in the sense t…