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39 papers · 1 filter
Optimal Tree Tensor Network Operators for Tensor Network Simulations: Applications to Open Quantum Systems
Weitang Li, Jiajun Ren, Hengrui Yang +2
Tree tensor network states (TTNS) decompose the system wavefunction to the product of low-rank tensors based on the tree topology, serving as the foundation of the multi-layer mult…
On the dynamical Lie algebras of quantum approximate optimization algorithms
Jonathan Allcock, Miklos Santha, Pei Yuan +1
Dynamical Lie algebras (DLAs) have emerged as a valuable tool in the study of parameterized quantum circuits, helping to characterize both their expressiveness and trainability. In…
Full Characterization of the Depth Overhead for Quantum Circuit Compilation with Arbitrary Qubit Connectivity Constraint
Pei Yuan, Shengyu Zhang
In some physical implementations of quantum computers, 2-qubit operations can be applied only on certain pairs of qubits. Compilation of a quantum circuit into one compliant to suc…
Tantalum airbridges for scalable superconducting quantum processors
Kunliang Bu, Sainan Huai, Zhenxing Zhang +8
The unique property of tantalum (Ta), particularly its long coherent lifetime in superconducting qubits and its exceptional resistance to both acid and alkali, makes it promising f…
Entanglement Structure and Information Protection in Noisy Hybrid Quantum Circuits
Shuo Liu, Ming-Rui Li, Shi-Xin Zhang +1
In the context of measurement-induced entanglement phase transitions, the influence of quantum noises, which are inherent in real physical systems, is of great importance and exper…
Non-Markovianity Benefits Quantum Dynamics Simulation
Yu-Qin Chen, Shi-Xin Zhang, Shengyu Zhang
Quantum dynamics simulation on analog quantum simulators and digital quantum computer platforms has emerged as a powerful and promising tool for understanding complex non-equilibri…