354 citations · 664 across the 23 of their papers we have counts for
5 papers · 1 filter
Topological argument for robustness of coherent states in quantum optics
Saumya Biswas, Amrit De, Avik Dutt
Coherent states, being the closest analog to classical states of wave systems, are well known to possess special properties that set them apart from most other quantum optical stat…
Fast Quantum Control for Weakly Nonlinear Qubits: On Two-Quadrature Adiabatic Gates
Amrit De
Adiabatic or slowly varying gate operations are typically required in order to remain within the qubit subspace in an anharmonic oscillator. However significant speed ups are possi…
Universal set of Dynamically Protected Gates for Bipartite Qubit Networks II: Soft Pulse Implementation of the [[5,1,3]] Quantum Error Correcting Code
Amrit De, Leonid P. Pryadko
We model repetitive quantum error correction (QEC) with the single-error-correcting five-qubit code on a network of individually-controlled qubits with always-on Ising couplings, u…
Dynamically corrected gates for qubits with always-on Ising couplings: Error model and fault-tolerance with the toric code
Amrit De, Leonid P. Pryadko
We describe how a universal set of dynamically-corrected quantum gates can be implemented using sequences of shaped decoupling pulses on any qubit network forming a sparse bipartit…
Universal set of scalable dynamically corrected gates for quantum error correction with always-on qubit couplings
Amrit De, Leonid P. Pryadko
We construct a universal set of high fidelity quantum gates to be used on a sparse bipartite lattice with always-on Ising couplings. The gates are based on dynamical decoupling seq…