151 citations · 403 across the 11 of their papers we have counts for
11 papers
A General Convergence Result for Mirror Descent with Armijo Line Search
Yen-Huan Li, Carlos A. Riofrio, Volkan Cevher
Existing convergence guarantees for the mirror descent algorithm require the objective function to have a bounded gradient or be smooth relative to a Legendre function. The bounded…
Optimal Pure-State Qubit Tomography via Sequential Weak Measurements
Ezad Shojaee, Christopher S. Jackson, Carlos A. Riofrio +2
The spin-coherent-state positive-operator-valued-measure (POVM) is a fundamental measurement in quantum science, with applications including tomography, metrology, teleportation, b…
Experimentally exploring compressed sensing quantum tomography
A. Steffens, C. Riofrio, W. McCutcheon +6
In the light of the progress in quantum technologies, the task of verifying the correct functioning of processes and obtaining accurate tomographic information about quantum states…
Experimental quantum compressed sensing for a seven-qubit system
C. A. Riofrio, D. Gross, S. T. Flammia +4
Well-controlled quantum devices with their increasing system size face a new roadblock hindering further development of quantum technologies: The effort of quantum tomography---the…
Estimating strong correlations in optical lattices
J. Gertis, M. Friesdorf, C. A. Riofrio +1
Ultra-cold atoms in optical lattices provide one of the most promising platforms for analog quantum simulations of complex quantum many-body systems. Large-size systems can now rou…
Characterizing and Quantifying Quantum Chaos with Quantum Tomography
Vaibhav Madhok, Carlos A. Riofrío, Ivan H. Deutsch
We explore quantum signatures of classical chaos by studying the rate of information gain in quantum tomography. The tomographic record consists of a time series of expectation val…
Accurate and robust unitary transformation of a high-dimensional quantum system
B. E. Anderson, H. Sosa-Martinez, C. A. Riofrío +2
Quantum control in large dimensional Hilbert spaces is essential for realizing the power of quantum information processing. For closed quantum systems the relevant input/output map…
Towards experimental quantum field tomography with ultracold atoms
A. Steffens, M. Friesdorf, T. Langen +6
The experimental realisation of large scale many-body systems has seen immense progress in recent years, rendering full tomography tools for state identification inefficient, espec…
Quantum field tomography
A. Steffens, C. A. Riofrío, R. Hübener +1
We introduce the concept of quantum field tomography, the efficient and reliable reconstruction of unknown quantum fields based on data of correlation functions. At the basis of th…
Quantum state tomography by continuous measurement and compressed sensing
A. Smith, C. A. Riofrío, B. E. Anderson +3
The need to perform quantum state tomography on ever larger systems has spurred a search for methods that yield good estimates from incomplete data. We study the performance of com…
Random unitary maps for quantum state reconstruction
Seth T. Merkel, Carlos A. Riofrio, Steven T. Flammia +1
We study the possibility of performing quantum state reconstruction from a measurement record that is obtained as a sequence of expectation values of a Hermitian operator evolving…