6 papers
Optimal T-Count for Block Encodings of Fermionic and Spin Hamiltonians
Jiaxin Ma, Kevin J. Joven, Yuan Liu
We determine the non-Clifford -gate cost of constructing block encodings of structured fermionic and spin Hamiltonians in a unitary Clifford model, when arbitrarily many cle…
Scalable Quantum Computational Science: A Perspective from Block-Encodings and Polynomial Transformations
Kevin J. Joven, Elin Ranjan Das, Joel Bierman +3
Significant developments made in quantum hardware and error correction recently have been driving quantum computing towards practical utility. However, gaps remain between abstract…
Unification of Finite Symmetries in Simulation of Many-body Systems on Quantum Computers
Victor M. Bastidas, Nathan Fitzpatrick, K. J. Joven +5
Symmetry is fundamental in the description and simulation of quantum systems. Leveraging symmetries in classical simulations of many-body quantum systems can results in significant…
Complexification of Quantum Signal Processing and its Ramifications
V. M. Bastidas, K. J. Joven
In recent years there has been an increasing interest on the theoretical and experimental investigation of space-time dual quantum circuits. They exhibit unique properties and have…
Characterizing the quantum properties of ultralight dark matter -- an open quantum systems approach
Jose-Daniel Bernal, Ryan B. Petery, K. J. Joven +1
Obtaining insight into the constituents of dark matter and their interactions with normal matter has inspired a wide range of experimental efforts. Several approaches, particularly…
Out-of-time-order correlators in electronic structure using Quantum Computers
K. J. Joven, V. M. Bastidas
Operator spreading has profound implications in diverse fields ranging from statistical mechanics and blackhole physics to quantum information. The usual way to quantify it is thro…