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quant-ph2023
Lower bound of the expressibility of ansatzes for Variational Quantum Algorithms
Tamojit Ghosh, Arijit Mandal, Shreya Banerjee +2
The expressibility of an ansatz used in a variational quantum algorithm is defined as the uniformity with which it can explore the space of unitary matrices, i.e., its covering num…
quant-ph2023
Tensile quantum-to-classical transition of macroscopic entangled states under complete coarse-grained measurements
Laxmi Prasad Naik, Tamal Ghosh, Sumit Mukherjee +2
The macroscopic limit at which the quantum-to-classical transition occurs remains as one of the long-standing questions in the foundations of quantum theory. There are evidences th…