- Australian Astronomical ObservatoryAU873 papers
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- UNSW SydneyAU309 papers
- Swinburne University of TechnologyAU299 papers
- University of CambridgeGB297 papers
- ARC Centre of Excellence for All-sky AstrophysicsAU289 papers
- University College LondonGB269 papers
- Princeton UniversityUS264 papers
12 papers · 2 filters
Implementation of multipartite unitary operations with limited resources
Dominic W. Berry
A general method for implementing weakly entangling multipartite unitary operations using a small amount of entanglement and classical communication is presented. For the simple Ha…
Degradation of a quantum directional reference frame as a random walk
Stephen D. Bartlett, Terry Rudolph, Barry C. Sanders +1
We investigate if the degradation of a quantum directional reference frame through repeated use can be modeled as a classical direction undergoing a random walk on a sphere. We dem…
Duality for monogamy of entanglement
Somshubhro Bandyopadhyay, Gilad Gour, Barry C. Sanders
We establish duality for monogamy of entanglement: whereas monogamy of entanglement inequalities provide an upper bound for bipartite sharability of entanglement in a multipartite…
Room temperature coherent control of coupled single spins in solid
T. Gaebel, M. Domhan, I. Popa +11
Coherent coupling between single quantum objects is at the heart of modern quantum physics. When coupling is strong enough to prevail over decoherence, it can be used for the engin…
Two qubits can be entangled in two distinct temperature regions
Dominic W. Berry, Mark R. Dowling
We have found that for a wide range of two-qubit Hamiltonians the canonical-ensemble thermal state is entangled in two distinct temperature regions. In most cases the ground state…
Estimating Information Gain in Measurements in Suboptimal Bases for Quantum State Tomography
Manas Patra
It is known that mutually unbiased bases, whenever they exist, are optimal in an information theoretic sense for the determination of unknown state of a quantum ensemble. These bas…