5 papers
High-dimensional quantum process tomography with undetected photons
Salini Rajeev, Mayukh Lahiri
The goal of quantum process tomography is to fully characterize an operation performed on a quantum state. By considering high-dimensional quantum states (qudit), we show that it i…
Phase-Subtractive Interference and Noise-Resistant Quantum Imaging with Two Undetected Photons
Chandler Tarrant, Mayukh Lahiri
We introduce and theoretically analyze a quantum interference phenomenon in which a two-photon interference pattern is created using four-photon quantum states generated by two ind…
Verification of continuous variable entanglement with undetected photons
Sanjukta Kundu, Balakrishnan Viswanathan, Pawel Szczypkowski +3
We verify transverse spatial entanglement of photon-pairs generated in spontaneous parametric down conversion using a nonlinear interferometric technique without relying on any coi…
Characterizing a high-dimensional unitary transformation without measuring the qudit it transforms
Salini Rajeev, Mayukh Lahiri
We present a method for reconstructing an arbitrary high-dimensional unitary transformation without detecting the qudit that it transforms. We demonstrate the method using orbital…
Complete Measurement of Two-Photon Density Matrix by Single-Photon Detection
Salini Rajeev, Mayukh Lahiri
The reconstruction of density matrices from measurement data (quantum state tomography) is the most comprehensive method for assessing the accuracy and performance of quantum devic…