4 papers
Entanglement dynamics via Geometric phases in Trapped-ions
Dharmaraj Ramachandran, Ganesh Hanchanahal, Radhika Vathsan
Trapped-ion systems are a leading platform for quantum computing. The Mølmer-Sørensen (MS) gate is a widely used method for implementing controlled interactions in multipartite s…
Robust entanglement measure for mixed quantum states
Dharmaraj Ramachandran, Aditya Dubey, Subrahmanyam S. G. Mantha +1
We introduce an entanglement measure, the Modified Bloch Norm (MBN), for finite-dimensional bipartite mixed states, based on the improved Bloch matrix criteria. MBN is demonstrated…
A Sharp Geometric Measure of Entanglement
Dharmaraj Ramachandran, Radhika Vathsan
Despite their elegance and widespread use, the current Geometric Measures (GMs) of entanglement exhibit a significant limitation: they fail to effectively distinguish Local Unitary…
A Riemannian Genuine Measure of Entanglement for Pure States
Dharmaraj Ramachandran, Radhika Vathsan
While several measures exist for entanglement of multipartite pure states, a true entanglement measure for mixed states still eludes us. A deeper study of the geometry of quantum s…