19 citations · 59 across the 9 of their papers we have counts for
9 papers
Noise-Canceling Quantum Feedback: non-Hermitian Dynamics with Applications to State Preparation and Magic State Distillation
Tathagata Karmakar, Philippe Lewalle, Yipei Zhang +1
Time-continuous quantum measurement allows for the tracking of a quantum system in real time via sequences of short, and individually weak, measurement intervals. Such measurements…
Optimal schedule of multi-channel quantum Zeno dragging with application to solving the k-SAT problem
Yipei Zhang, Alain Sarlette, Philippe Lewalle +3
Quantum Zeno dragging enables the preparation of common eigenstates of a set of observables by frequent measurement and adiabatic-like modulation of the measurement basis. In this…
CDJ-Pontryagin Optimal Control for General Continuously Monitored Quantum Systems
Tathagata Karmakar, Andrew N. Jordan
The Chantasri-Dressel-Jordan (CDJ) stochastic path integral formalism (Chantasri et al. 2013 and 2015) characterizes the statistics of the readouts and the most likely conditional…
Experimental realization of supergrowing fields
Sethuraj K. R., Tathagata Karmakar, S. A. Wadood +2
Supergrowth refers to the local amplitude growth rate of a signal being faster than its fastest Fourier mode. In contrast, superoscillation pertains to the variation of the phase.…
Supergrowth and sub-wavelength object imaging
Tathagata Karmakar, Abhishek Chakraborty, A. Nick Vamivakas +1
We further develop the concept of supergrowth [Jordan, Quantum Stud.: Math. Found. , 285-292 (2020)], a phenomenon complementary to superoscillation, defined as the loc…
Beyond Superoscillation: General Theory of Approximation with Bandlimited Functions
Tathagata Karmakar, Andrew N. Jordan
We give a general strategy to construct superoscillating/growing functions using an orthogonal polynomial expansion of a bandlimited function. The degree of superoscillation/growth…
The relationship between galaxy and halo sizes in the Illustris and IllustrisTNG simulations
Tathagata Karmakar, Shy Genel, Rachel S. Somerville
Abundance matching studies have shown that the average relationship between galaxy radius and dark matter halo virial radius remains nearly constant over many orders of magnitude i…
Cyclic Superconducting Quantum Refrigerators Using Guided Fluxon Propagation
Tathagata Karmakar, Étienne Jussiau, Sreenath K. Manikandan +1
We propose cyclic quantum refrigeration in solid-state, employing a gas of magnetic field vortices in a type-II superconductor -- also known as fluxons -- as the cooling agent. Ref…
Stochastic Path Integral Analysis of the Continuously Monitored Quantum Harmonic Oscillator
Tathagata Karmakar, Philippe Lewalle, Andrew N. Jordan
We consider the evolution of a quantum simple harmonic oscillator in a general Gaussian state under simultaneous time-continuous weak position and momentum measurements. We deduce…