4 papers
Predicting properties of quantum thermal states from a single trajectory
Jiaqing Jiang, Jiaqi Leng, Lin Lin
Estimating thermal expectation values of observables is a fundamental task in quantum physics, quantum chemistry, and materials science. While recent quantum algorithms have enable…
Quantum-Enhanced Dark Matter Search Using Cat States
Pan Zheng, Yanyan Cai, Bin Xu +12
Quantum metrology has recently emerged as a powerful approach for dark matter (DM) searches, particularly using nonclassical bosonic states in microwave cavities that are sensitive…
Infinite quantum signal processing for arbitrary Szegő functions
Michel Alexis, Lin Lin, Gevorg Mnatsakanyan +2
We provide a complete solution to the problem of infinite quantum signal processing for the class of Szegő functions, which are functions that satisfy a logarithmic integrability c…
Multi-level quantum signal processing with applications to ground state preparation using fast-forwarded Hamiltonian evolution
Yulong Dong, Lin Lin
The preparation of the ground state of a Hamiltonian with a large spectral radius has applications in many areas such as electronic structure theory and quantum field theory. G…