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10 papers · 2 filters
Quantum Computing, Postselection, and Probabilistic Polynomial-Time
Scott Aaronson
I study the class of problems efficiently solvable by a quantum computer, given the ability to "postselect" on the outcomes of measurements. I prove that this class coincides with…
Quantum mechanics needs no interpretation
L. Skala, V. Kapsa
Probabilistic description of results of measurements and its consequences for understanding quantum mechanics are discussed. It is shown that the basic mathematical structure of qu…
Quantum Walk on a Line with Two Entangled Particles
Y. Omar, N. Paunkovic, L. Sheridan +1
We introduce the concept of a quantum walk with two particles and study it for the case of a discrete time walk on a line. A quantum walk with more than one particle may contain en…
Robust Quantum Algorithms for Oracle Identification
Andris Ambainis, Kazuo Iwama, Akinori Kawachi +2
The oracle identification problem (OIP) was introduced by Ambainis et al. \cite{AIKMRY04}. It is given as a set of oracles and a blackbox oracle . Our task is to figure…
Selective coherence transfers in homonuclear dipolar coupled spin systems
Chandrasekhar Ramanathan, Suddhasattwa Sinha, Jonathan Baugh +2
Mapping the physical dipolar Hamiltonian of a solid-state network of nuclear spins onto a system of nearest-neighbor couplings would be extremely useful for a variety of quantum in…
Connections between relative entropy of entanglement and geometric measure of entanglement
Tzu-Chieh Wei, Marie Ericsson, Paul M. Goldbart +1
As two of the most important entanglement measures--the entanglement of formation and the entanglement of distillation--have so far been limited to bipartite settings, the study of…