59 citations · 528 across the 46 of their papers we have counts for
47 papers
On The Spectral Properties of Discrete Landscape Functions
Aryaman Chandra, S. R. Jain
We study the landscape function on a discretized interval. The discrete landscape has an explicit closed form, and its spectral coefficients can be computed exactly. We show that t…
Quantum thermodynamic cycles in the forward and time-reversed regimes
Debadrito Roy, Sudhir Ranjan Jain
A quantum engine with n qubits performing thermodynamic cycles with two thermal reservoirs is presented. While such constructions have been aplenty, here we show the existence of w…
Quantum error correction beyond the toric code: dynamical systems meet encoding
Garima Rajpoot, Komal Kumari, Sudhir Ranjan Jain
We construct surface codes corresponding to genus greater than one in the context of quantum error correction. The architecture is inspired by the topology of invariant integral su…
Quantum Zeno effect: a qutrit controlled by a qubit
Komal Kumari, Garima Rajpoot, Sudhir Ranjan Jain
For a three-level system monitored by an ancilla, we show that quantum Zeno effect can be employed to control quantum jump for error correction. Further, we show that we can realiz…
The tunable 0-\texorpdfstring{}{Lg} qubit: Dynamics and Relaxation
Garima Rajpoot, Komal Kumari, Sandeep Joshi +1
We present a systematic treatment of a 0-\texorpdfstring{}{Lg} qubit in the presence of a time-dependent external flux. A gauge-invariant Lagrangian and the corresponding Hamilt…
Qubit control using quantum Zeno effect: Action principle approach
Komal Kumari, Garima Rajpoot, Sandeep Joshi +1
We employ the stochastic path-integral formalism and action principle for continuous quantum measurements - the Chantasri-Dressel-Jordan (CDJ) action formalism [1, 2] - to understa…