9 papers
Efficient imaging of quantum emitters using compressive sensing
Sonali Gupta, Kiran Bajar, Alexander McFarland +3
Optical imaging of quantum emitters is essential for a wide range of quantum applications. Conventional confocal imaging relies on point-by-point raster scanning, which is inherent…
Super-resolved reconstruction of single-photon emitter locations from maps
Sonali Gupta, Amit Kumar, Vikas S Bhat +1
Single-photon sources are vital for emerging quantum technologies. In particular, Nitrogen-vacancy (NV) centers in diamond are promising due to their room-temperature stability, lo…
Generation and certification of pure phase entangled light
Rounak Chatterjee, Mayuresh Kanagal, Vikas S Bhat +2
Biphoton systems exhibiting entanglement in position-momentum variables, known as spatial entanglement, are among the most intriguing and well-studied phenomena in quantum optics.…
Tracking phase entanglement during propagation of downconverted photons
Rounak Chatterjee, Vikas S Bhat, Kiran Bajar +1
High-dimensional entanglement in the form of transverse spatial correlation between a pair of photons generated via spontaneous parametric downconversion is not only a valuable res…
Optimizing the qudit dimensions of position-momentum entangled photons for QKD
Vikas S Bhat, Rounak Chatterjee, Kiran Bajar +1
We propose an optimization scheme to maximize the secure key rate of a high-dimensional variant of BBM92. We use the position-momentum conjugate bases to encode the higher dimensio…
Rapid and efficient wavefront correction for spatially entangled photons using symmetrized optimization
Kiran Bajar, Ronen Shekel, Vikas S. Bhat +3
Spatial entanglement is a key resource in quantum technologies, enabling applications in quantum communication, imaging, and computation. However, propagation through complex media…