82 citations · 160 across the 14 of their papers we have counts for
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Exploring topology via momentum-selective tomography
Sainan Huai, Ling Lin, Kunliang Bu +8
Identifying and measuring topological invariants remains a fundamental challenge due to the non-local nature of momentum eigenstates in real space. Established approaches based on…
High-Resolution Dynamical Eigenspectroscopy via Variational Trotter Compression on a Superconducting Qubit Processor
Liyang Sui, Xingrui Liu, Yufan Li +10
The pursuit of high-resolution eigenspectroscopy on noisy intermediate-scale quantum devices is often hindered by the trade-off between circuit depth and coherence time. In this wo…
A scalable edge-pass Purcell filter for high-fidelity readout of superconducting qubits
Xudong Liao, Yuan Li, Sainan Huai +11
High-fidelity readout with strong Purcell protection of qubit coherence is essential for scalable superconducting quantum processors, yet the finite passband and sizable footprint…
3D Ising criticality with Platonic lattice superconducting qubits
Liyang Sui, Hong-Hao Song, Sainan Huai +13
The three-dimensional (3D) Ising model is a foundational model in statistical physics and critical phenomena, yet its analytical intractability has long impeded the precise determi…
Breaking the scalability barrier via a vertical tunable coupler in 3D integrated transmon system
Xudong Liao, Shuyi Pan, Zhenxing Zhang +11
Scaling superconducting quantum processors beyond the constraints of monolithic planar architectures is essential for fault-tolerant quantum computation. Here we demonstrate a thre…
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…
Determination of Molecular Energies via Quantum Imaginary Time Evolution in a Superconducting Qubit System
Zhiwen Zong, Sainan Huai, Tianqi Cai +10
As a valid tool for solving ground state problems, imaginary time evolution (ITE) is widely used in physical and chemical simulations. Different ITE-based algorithms in their quant…
Efficient Quantum Simulation of Electron-Phonon Systems by Variational Basis State Encoder
Weitang Li, Jiajun Ren, Sainan Huai +3
Digital quantum simulation of electron-phonon systems requires truncating infinite phonon levels into basis states and then encoding them with qubit computational basis. Unary…
Rapid and Unconditional Parametric Reset Protocol for Tunable Superconducting Qubits
Yu Zhou, Zhenxing Zhang, Zelong Yin +16
Qubit initialization is a critical task in quantum computation and communication. Extensive efforts have been made to achieve this with high speed, efficiency and scalability. Howe…
Superposition of macroscopically squeezed states with enhanced squeezing in cavity optomechanical system at single-photon level
Sai-Nan Huai, Wei Nie, Yun-bo Zhang +1
We propose an efficient approach to generate the superposed macroscopically squeezed states with enhanced squeezing in a two-mode optomechanical system. This can be achieved by int…
Mechanically modulated emission spectra and blockade of polaritons
Sai-Nan Huai, Yu-Long Liu, Yunbo Zhang +1
We study a hybrid semiconductor-optomechanical system, which consists of a cavity with an oscillating mirror made by semiconducting materials or with a semiconducting membrane insi…
Vacuum induced transparency and photon number resolved Autler-Townes splitting in a three-level system
Jiang-Hao Ding, Sai-nan Huai, Hou Ian +1
We study the absorption spectrum of a probe field by a Λ-type three-level system, which is coupled to a quantized control field through the two upper energy levels. The probe field…
Polariton states in circuit QED for electromagnetically induced transparency
Xiu Gu, Sai-nan Huai, Franco Nori +1
Electromagnetically induced transparency (EIT) has been extensively studied in various systems. However, it is not easy to observe in superconducting quantum circuits (SQCs), becau…
Geometric Curvature and Phase of the Rabi model
Lijun Mao, Sainan Huai, Liping Guo +1
We study the geometric curvature and phase of the Rabi model. Under the rotating-wave approximation (RWA), we apply the gauge independent Berry curvature over a surface integral to…
Tavis-Cummings model beyond the rotating wave approximation: Inhomogeneous coupling
Lijun Mao, Sainan Huai, Yunbo Zhang
We present the analytical solution of the Tavis-Cummings (TC) model for more than one qubit inhomogeneously coupled to a single mode radiation field beyond the rotating-wave approx…