Debmalya Das

Experimental construction of a<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>W</mml:mi></mml:math>superposition state and its equivalence to the Greenberger-Horne-Zeilinger state under local filtration

2015 · Physical Review A

We experimentally construct a three-qubit entangled $W$ superposition $(W\overline{W})$ state on an NMR quantum information processor. We give a measurement-based filtration protocol for the invertible local operation (ILO) that converts the $W\overline{W}$ state to the …

Programmable Heisenberg interactions between Floquet qubits

2022 · arXiv (Cornell University)

The fundamental trade-off between robustness and tunability is a central challenge in the pursuit of quantum simulation and fault-tolerant quantum computation. In particular, many emerging quantum architectures are designed to achieve high coherence at the …