5 papers
Digitized counterdiabatic quantum critical dynamics
Anne-Maria Visuri, Alejandro Gomez Cadavid, Balaganchi A. Bhargava +6
We experimentally demonstrate that a digitized counterdiabatic quantum protocol reduces the number of topological defects created during a fast quench across a quantum phase transi…
Constant Depth Digital-Analog Counterdiabatic Quantum Computing
Balaganchi A. Bhargava, Shubham Kumar, Anne-Maria Visuri +3
We introduce a digital-analog quantum computing framework that enables counterdiabatic protocols to be implemented at constant circuit depth, allowing fast and resource-efficient q…
Digitized Counterdiabatic Quantum Sampling
Narendra N. Hegade, Nachiket L. Kortikar, Balaganchi A. Bhargava +9
We propose digitized counterdiabatic quantum sampling (DCQS), a hybrid quantum-classical algorithm for efficient sampling from energy-based models, such as low-temperature Boltzman…
Noise resilience of two-dimensional Floquet topological phases
Balaganchi A. Bhargava, Sanjib Kumar Das, Lukas M. Sieberer +1
We study the effect of noise on two-dimensional periodically driven topological phases, focusing on two examples: the anomalous Floquet-Anderson phase and the disordered Floquet-Ch…
Digital-analog quantum computing of fermion-boson models in superconducting circuits
Shubham Kumar, Narendra N. Hegade, Anne-Maria Visuri +5
High-fidelity quantum simulations demand hardware-software co-design architectures, which are crucial for adapting to complex problems such as strongly correlated dynamics in conde…