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quant-ph2024★ 2 cited
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…
quant-ph2012★ 16 cited
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…