activity
20212025
most citedExploring Ququart Computation on a Transmon using Optimal Control

21 citations · 53 across the 9 of their papers we have counts for

collaborators

11 papers

quant-ph2025★ 2 cited

Implementation of a quantum addressable router using superconducting qubits

Connie Miao, Sébastien Léger, Ziqian Li +3

The implementation of a quantum router capable of performing both quantum signal routing and quantum addressing (a Q2-router) represents a key step toward building quantum networks…

quant-ph2025

A Cascaded Random Access Quantum Memory

Ziqian Li, Eesh Gupta, Fang Zhao +7

Dynamic random access memory (DRAM) is critical to classical computing but notably absent in current superconducting quantum processors. Integrating high-coherence memory units wou…

quant-ph2025★ 2 cited

A Flux-Tunable cavity for Dark matter detection

Fang Zhao, Ziqian Li, Akash V. Dixit +7

Developing a dark matter detector with wide mass tunability is an immensely desirable property, yet it is challenging due to maintaining strong sensitivity. Resonant cavities for d…

quant-ph2023

Autonomous stabilization with programmable stabilized state

Ziqian Li, Tanay Roy, Yao Lu +2

Reservoir engineering is a powerful technique to autonomously stabilize a quantum state. Traditional schemes involving multi-body states typically function for discrete entangled s…

quant-ph2023★ 21 cited

Exploring Ququart Computation on a Transmon using Optimal Control

Lennart Maximilian Seifert, Ziqian Li, Tanay Roy +3

Contemporary quantum computers encode and process quantum information in binary qubits (d = 2). However, many architectures include higher energy levels that are left as unused com…

quant-ph2023★ 13 cited

Dancing the Quantum Waltz: Compiling Three-Qubit Gates on Four Level Architectures

Andrew Litteken, Lennart Maximilian Seifert, Jason D. Chadwick +6

Superconducting quantum devices are a leading technology for quantum computation, but they suffer from several challenges. Gate errors, coherence errors and a lack of connectivity…

quant-ph2023★ 4 cited

Hardware efficient autonomous error correction with linear couplers in superconducting circuits

Ziqian Li, Tanay Roy, David Rodríguez Pérez +2

Large-scale quantum computers will inevitably need quantum error correction (QEC) to protect information against decoherence. Given that the overhead of such error correction is of…

quant-ph2023★ 1 cited

Autonomous error correction of a single logical qubit using two transmons

Ziqian Li, Tanay Roy, David Rodriguez Perez +3

Large-scale quantum computers will inevitably need quantum error correction to protect information against decoherence. Traditional error correction typically requires many qubits,…

quant-ph2022★ 10 cited

Realization of two-qutrit quantum algorithms on a programmable superconducting processor

Tanay Roy, Ziqian Li, Eliot Kapit +1

Processing quantum information using quantum three-level systems or qutrits as the fundamental unit is an alternative to contemporary qubit-based architectures with the potential t…

quant-ph2021

Error-divisible two-qubit gates

David Rodriguez Perez, Paul Varosy, Ziqian Li +3

We introduce a simple, widely applicable formalism for designing "error-divisible" two qubit gates: a quantum gate set where fractional rotations have proportionally reduced error…

quant-ph2021

Tomography in the presence of stray inter-qubit coupling

Tanay Roy, Ziqian Li, Eliot Kapit +1

Tomography is an indispensable part of quantum computation as it enables diagnosis of a quantum process through state reconstruction. Existing tomographic protocols are based on de…