58 citations · 231 across the 9 of their papers we have counts for
8 papers · 1 filter
Accelerating quantum optics experiments with statistical learning
Cristian L. Cortes, Sushovit Adhikari, Xuedan Ma +1
Quantum optics experiments, involving the measurement of low-probability photon events, are known to be extremely time-consuming. We present a new methodology for accelerating such…
Conclusive Precision Bounds for SU(1,1) Interferometers
Chenglong You, Sushovit Adhikari, Xiaoping Ma +3
In this paper, we revisit the quantum Fisher information (QFI) calculation in SU(1,1) interferometer considering different phase configurations. When one of the input modes is a va…
Orbital-angular-momentum-enhanced estimation of sub-Heisenberg-limited angular displacement with two-mode squeezed vacuum and parity detection
Jiandong Zhang, Zijing Zhang, Longzhu Cen +1
We report on an orbital-angular-momentum-enhanced scheme for angular displacement estimation based on two-mode squeezed vacuum and parity detection. The sub-Heisenberg-limited sens…
Quantum process tomography of linear and quadratically nonlinear optical systems
Kevin Valson Jacob, Anthony E. Mirasola, Sushovit Adhikari +1
A central task in quantum information processing is to characterize quantum processes. In the realm of optical quantum information processing, this amounts to characterizing the tr…
Enhanced signal-to-noise ratio in Hanbury Brown Twiss interferometry by parametric amplification
Xiaoping Ma, Chenglong You, Sushovit Adhikari +2
The Hanbury Brown Twiss (HBT) interferometer was proposed to observe intensity correlations of starlight to measure a star's angular diameter. As the intensity of light that reache…
Sub-shot-noise-limited phase estimation via SU(1,1) interferometer with thermal states
Xiaoping Ma, Chenglong You, Sushovit Adhikari +3
We theoretically study the phase sensitivity of an SU(1,1) interferometer with a thermal state and squeezed vacuum state as inputs and parity detection as measurement. We find that…
Bounding the energy-constrained quantum and private capacities of phase-insensitive bosonic Gaussian channels
Kunal Sharma, Mark M. Wilde, Sushovit Adhikari +1
We establish several upper bounds on the energy-constrained quantum and private capacities of all single-mode phase-insensitive bosonic Gaussian channels. The first upper bound, wh…
Multiparameter estimation with single photons
Chenglong You, Sushovit Adhikari, Yuxi Chi +8
It was suggested in Ref. [Phys. Rev. Lett. 114, 170802] that optical networks with relatively inexpensive overhead---single photon Fock states, passive optical elements, and single…