17 citations · 19 across the 13 of their papers we have counts for
13 papers
Bayesian post-correction of non-Markovian errors in bosonic lattice gravimetry
Bharath Hebbe Madhusudhana, Andrew Harter, Avadh Saxena
We study gravimetry with bosonic trapped atoms in the presence of random spatial inhomogeneity. The errors resulting from a random, shot-to-shot fluctuating spatial inhomogeneity a…
Experimental characterization of coherent and non-Markovian errors using tangent space decomposition
Elia Perego, Andrea Rodriguez-Blanco, K. Birgitta Whaley +1
Accurate characterization of coherent and non-Markovian errors remains a central challenge in quantum information processing, as conventional benchmarking techniques typically rely…
Background cancellation for frequency-selective quantum sensing
Ricard Puig, Nathan Constantinides, Bharath Hebbe Madhusudhana +3
A key challenge in quantum sensing is the detection of weak time dependent signals, particularly those that arise as specific frequency perturbations over a background field. Conve…
Engineering multi-mode bosonic squeezed states using Monte-Carlo optimization
Jieqiu Shao, Diego A. R. Dalvit, Lukasz Cincio +1
Bosonic systems, such as photons and ultracold atoms, have played a central role in demonstrating quantum-enhanced sensing. Quantum entanglement, through squeezed and GHZ states, e…
Thresholded Quantum Sensing with a Frustrated Kitaev Trimer
C. Huerta Alderete, Anubhav Kumar Srivastava, Bharath Hebbe Madhusudhana +1
We investigate the response of a Ramsey interferometric quantum sensor based on a frustrated, three-spin system (a Kitaev trimer) to a classical time-dependent field (signal). The…
Solving tricky quantum optics problems with assistance from (artificial) intelligence
Manas Pandey, Bharath Hebbe Madhusudhana, Saikat Ghosh +1
The capabilities of modern artificial intelligence (AI) as a ``scientific collaborator'' are explored by engaging it with three nuanced problems in quantum optics: state population…
Optimizing lossy state preparation for quantum sensing using Hamiltonian engineering
Bharath Hebbe Madhusudhana
One of the most prominent platforms for demonstrating quantum sensing below the standard quantum limit is the spinor Bose-Einstein condensate. While a quantum advantage using sever…
Mitigating Non-Markovian and Coherent Errors Using Quantum Process Tomography of Proxy States
I-Chi Chen, Bharath Hebbe Madhusudhana
Detecting mitigating and correcting errors in quantum control is among the most pertinent contemporary problems in quantum technologies. We consider three of the most common bosoni…
Optical tweezer generation using automated alignment and adaptive optics
Bharath Hebbe Madhusudhana, Karatzyna Krzyzanowska, Malcolm Boshier
Recent progress in quantum technologies with ultracold atoms has been propelled by spatially fine-tuned control of lasers and diffraction-limited imaging. The state-of-the-art prec…
Benchmarking multi-qubit gates -- II: Computational aspects
Bharath Hebbe Madhusudhana
An important step in developing multi-qubit gates is to construct efficient benchmarking protocols for them. In our previous paper (arXiv: 2210.04330), we developed metrological pr…
Benchmarking multi-qubit gates -- I: Metrological aspects
Bharath Hebbe Madhusudhana
Accurate and precise control of large quantum systems is paramount to achieve practical advantages on quantum devices. Therefore, benchmarking the hardware errors in quantum comput…
Experimental realization of fragmented models in tilted Fermi-Hubbard chains
Thomas Kohlert, Sebastian Scherg, Pablo Sala +4
Quantum many-body systems may defy thermalization even without disorder. Intriguingly, non-ergodicity may be caused by a fragmentation of the many-body Hilbert-space into dynamical…
Quantum Entanglement, Symmetric Nonnegative Quadratic Polynomials and Moment Problems
Grigoriy Blekherman, H. M. Bharath
Quantum states are represented by positive semidefinite Hermitian operators with unit trace, known as density matrices. An important subset of quantum states is that of separable s…