260 citations · 929 across the 27 of their papers we have counts for
28 papers
Single-photon circularly polarized single-mode vortex beams
Xujing Liu, Yinhui Kan, Shailesh Kumar +3
Generation of single photons carrying spin and orbital angular momenta (SAM and OAM) opens enticing perspectives for exploiting multiple degrees of freedom for high-dimensional qua…
Ultracompact single-photon sources of linearly polarized vortex beams
Xujing Liu, Yinhui Kan, Shailesh Kumar +5
Ultracompact chip-integrated single-photon sources of collimated beams with polarizationencoded states are crucial for integrated quantum technologies. However, most of currently a…
Scattering holography designed metasurfaces for channeling single-photon emission
Danylo Komisar, Shailesh Kumar, Yinhui Kan +5
Channelling single-photon emission in multiple well-defined directions and simultaneously controlling its polarization characteristics is highly desirable for numerous quantum tech…
Sub-to-super-Poissonian photon statistics in cathodoluminescence of color center ensembles in isolated diamond crystals
Saskia Fiedler, Sergii Morozov, Danylo Komisar +8
Impurity-vacancy centers in diamond offer a new class of robust photon sources with versatile quantum properties. While individual color centers commonly act as single-photon sourc…
Can we detect a supertranslated black hole?
Subhodeep Sarkar, Shailesh Kumar, Srijit Bhattacharjee
We attempt to address the question of whether standard tests of general relativity can detect the presence of a black hole carrying a supertranslation field. In this regard, we stu…
Displacement memory and BMS symmetries
Shailesh Kumar
This article reviews one of the most intriguing properties of black hole spacetimes known in the literature -- gravitational memory effect, and its connection with asymptotic symme…