60 citations · 204 across the 15 of their papers we have counts for
15 papers
Attaining Fundamental Limits of Multiparameter Incoherent Optical Imaging Using Joint-Detection Quantum Measurements
Nico Deshler, Aakash Warke, Michael R. Grace +2
Resolving extended incoherent objects below the diffraction limit poses an application-rich imaging challenge whose solution may enable a new generation of observational instrument…
Fundamental Limit for One versus Two Point Sources Detection using Direct Imaging
Parth Hemant Darekar, Amit Kumar Jha, Michael R. Grace +2
We consider the task of distinguishing between a single weak incoherent optical point source and two weak incoherent optical point sources located symmetrically about the first sou…
Passive optical superresolution at the quantum limit
A. I. Lvovsky, Michael R. Grace, Saikat Guha +3
For more than a century, the diffraction limit has defined the resolution achievable by passive optical imaging systems. Although some resolution improvement can be gained through…
Programmable pixel-mode linear interferometers using multi-plane light conversion
Mushkan Sureka, Itay Ozer, Wenhua He +3
Programmable linear optical interferometers are a core primitive in optical signal processing, quantum information processing, and photonic computing. Existing photonic-integrated…
Adaptive Super-Resolution Imaging Without Prior Knowledge Using a Programmable Spatial-Mode Sorter
Itay Ozer, Michael. R. Grace, Pierre-Alexandre Blanche +1
We consider an imaging system tasked with estimating the angular distance between two incoherently-emitting, identically bright, sub-Rayleigh-separated point sources, without any p…
Detecting changes to sub-diffraction objects with quantum-optimal speed and accuracy
Michael R Grace, Saikat Guha, Zachary Dutton
Detecting if and when objects change is difficult in passive sub-diffraction imaging of dynamic scenes. We consider the best possible tradeoff between responsivity and accuracy for…
Quantum limits of parameter estimation in long-baseline imaging
Aqil Sajjad, Michael R Grace, Saikat Guha
Distributed aperture telescopes are a well-established approach for boosting resolution in astronomical imaging. However, theoretical limits on quantitative imaging precision, and…
Demonstration of quantum-limited discrimination of multi-copy pure versus mixed states
Arunkumar Jagannathan, Olivia Brasher, Michael Grace +3
We demonstrate an optical receiver that achieves the quantum Chernoff bound for discriminating coherent states from thermal states in the multi-copy scenario. In contrast, we find…
Identifying Objects at the Quantum Limit for Super-Resolution Imaging
Michael R Grace, Saikat Guha
We consider passive imaging tasks involving discrimination between known candidate objects and investigate the best possible accuracy with which the correct object can be identifie…
Perturbation Theory for Quantum Information
Michael R Grace, Saikat Guha
We report lowest-order series expansions for primary matrix functions of quantum states based on a perturbation theory for functions of linear operators. Our theory enables efficie…
Attaining quantum limited precision of localizing an object in passive imaging
Aqil Sajjad, Michael R Grace, Quntao Zhuang +1
We investigate our ability to determine the mean position, or centroid, of a linear array of equally-bright incoherent point sources of light, whose continuum limit is the problem…
Entanglement Enhanced Estimation of a Parameter Embedded in Multiple Phases
Michael R. Grace, Christos N. Gagatsos, Saikat Guha
Quantum-enhanced sensing promises to improve the performance of sensing tasks using non-classical probes and measurements that require far fewer scene-modulated photons than the be…
Quantum-Enhanced Fiber-Optic Gyroscopes Using Quadrature Squeezing and Continuous Variable Entanglement
Michael R Grace, Christos N. Gagatsos, Quntao Zhuang +1
We analyze a fiber-optic gyroscope design enhanced by the injection of quantum-optical squeezed vacuum into a fiber-based Sagnac interferometer. In the presence of fiber loss, we c…
Programming the Kennedy Receiver for Capacity Maximization versus Minimizing One-shot Error Probability
Rahul Bhadani, Michael Grace, Ivan B. Djordjevic +2
We find the capacity attained by the Kennedy receiver for coherent-state BPSK when the symbol prior p and pre-detection displacement are optimized. The optimal displacement is diff…
Approaching Quantum Limited Super-Resolution Imaging without Prior Knowledge of the Object Location
Michael R Grace, Zachary Dutton, Amit Ashok +1
A recently identified class of receivers which demultiplex an optical field into a set of orthogonal spatial modes prior to detection can surpass canonical diffraction limits on sp…