21 citations · 58 across the 11 of their papers we have counts for
11 papers
Frequency-noise-insensitive universal control of Kerr-cat qubits
Lennart Maximilian Seifert, Connor T. Hann, Kyungjoo Noh
We theoretically study the influence of frequency uncertainties on the operation of a Kerr-cat qubit. As the mean photon number increases, Kerr-cat qubits provide an increasing lev…
Variational Quantum Algorithms in the era of Early Fault Tolerance
Siddharth Dangwal, Suhas Vittal, Lennart Maximillian Seifert +2
Quantum computing roadmaps predict the availability of 10,000 qubit devices within the next 3-5 years. With projected two-qubit error rates of 0.1%, these systems will enable certa…
Programming an Optical Lattice Interferometer
Lennart Maximilian Seifert, Victor E. Colussi, Michael A. Perlin +2
Programming a quantum device describes the usage of quantum logic gates, agnostic of hardware specifics, to perform a sequence of operations with (typically) a computing or sensing…
Clapton: Clifford-Assisted Problem Transformation for Error Mitigation in Variational Quantum Algorithms
Lennart Maximilian Seifert, Siddharth Dangwal, Frederic T. Chong +1
Variational quantum algorithms (VQAs) show potential for quantum advantage in the near term of quantum computing, but demand a level of accuracy that surpasses the current capabili…
Clifford Assisted Optimal Pass Selection for Quantum Transpilation
Siddharth Dangwal, Gokul Subramanian Ravi, Lennart Maximilian Seifert +3
The fidelity of quantum programs in the NISQ era is limited by high levels of device noise. To increase the fidelity of quantum programs running on NISQ devices, a variety of optim…
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…
Qompress: Efficient Compilation for Ququarts Exploiting Partial and Mixed Radix Operations for Communication Reduction
Andrew Litteken, Lennart Maximilian Seifert, Jason Chadwick +3
Quantum computing is in an era of limited resources. Current hardware lacks high fidelity gates, long coherence times, and the number of computational units required to perform mea…
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…
Fast Fingerprinting of Cloud-based NISQ Quantum Computers
Kaitlin N. Smith, Joshua Viszlai, Lennart Maximilian Seifert +3
Cloud-based quantum computers have become a reality with a number of companies allowing for cloud-based access to their machines with tens to more than 100 qubits. With easy access…
Time-Efficient Qudit Gates through Incremental Pulse Re-seeding
Lennart Maximilian Seifert, Jason Chadwick, Andrew Litteken +2
Current efforts to build quantum computers focus mainly on the two-state qubit, which often involves suppressing readily-available higher states. In this work, we break this abstra…
Quantum Steering on IBMQ
Lennart Maximilian Seifert, Konstantin Beyer, Kimmo Luoma +1
We use contemporary quantum computers to experimentally investigate quantum steering ofan open quantum system by measurements on its environment. On three IBMQ processors wedisting…