10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of TsukubaJP1.6k papers
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- University of Wisconsin–MadisonUS1.6k papers
- Michigan State UniversityUS1.6k papers
- Waseda UniversityJP1.6k papers
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- Centre National de la Recherche ScientifiqueFR1.5k papers
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9 papers · 2 filters
Quantum tomography of the full hyperfine manifold of atomic spins via continuous measurement on an ensemble
Carlos A. Riofrío, Poul S. Jessen, Ivan H. Deutsch
Quantum state reconstruction based on weak continuous measurement has the advantage of being fast, accurate, and almost non-perturbative. In this work we present a pedagogical revi…
Interpreting quantum discord through quantum state merging
Vaibhav Madhok, Animesh Datta
We present an operational interpretation of quantum discord based on the quantum state merging protocol. Quantum discord is the markup in the cost of quantum communication in the p…
Nonlinear interferometry with Bose-Einstein condensates
Alexandre B. Tacla, Sergio Boixo, Animesh Datta +2
We analyze a proposed experiment [Boixo et al., Phys. Rev. Lett. 101, 040403 (2008)] for achieving sensitivity scaling better than in a nonlinear Ramsey interferometer that u…
Fundamental Quantum Limit to Waveform Estimation
Mankei Tsang, Howard M. Wiseman, Carlton M. Caves
We derive a quantum Cramér-Rao bound (QCRB) on the error of estimating a time-changing signal. The QCRB provides a fundamental limit to the performance of general quantum sensors,…
Quantum Discord and the Geometry of Bell-Diagonal States
Matthias D. Lang, Carlton M. Caves
The set of Bell-diagonal states for two qubits can be depicted as a tetrahedron in three dimensions. We consider the level surfaces of entanglement and quantum discord for Bell-dia…
Coherent Quantum-Noise Cancellation for Optomechanical Sensors
Mankei Tsang, Carlton M. Caves
Using a flowchart representation of quantum optomechanical dynamics, we design coherent quantum-noise-cancellation schemes that can eliminate the back-action noise induced by radia…
Strongly Enhanced Spin Squeezing via Quantum Control
Collin M. Trail, Poul S. Jessen, Ivan H. Deutsch
We describe a new approach to spin squeezing based on a double-pass Faraday interaction between an optical probe and an optically dense atomic sample. A quantum eraser is used to r…
An interleaved sampling scheme for the characterization of single qubit dynamics
Jason F. Ralph, Joshua Combes, Howard M. Wiseman
In this paper, we demonstrate that interleaved sampling techniques can be used to characterize the Hamiltonian of a qubit and its environmental decoherence rate. The technique offe…
Cavity quantum electro-optics
Mankei Tsang
The quantum dynamics of the coupling between a cavity optical field and a resonator microwave field via the electro-optic effect is studied. This coupling has the same form as the…