179 citations · 981 across the 17 of their papers we have counts for
17 papers
QCalEval: Benchmarking Vision-Language Models for Quantum Calibration Plot Understanding
Shuxiang Cao, Zijian Zhang, Abhishek Agarwal +29
Quantum computing calibration depends on interpreting experimental data, and calibration plots provide the most universal human-readable representation for this task, yet no system…
Reducing leakage of single-qubit gates for superconducting quantum processors using analytical control pulse envelopes
Eric Hyyppä, Antti Vepsäläinen, Miha Papič +10
Improving the speed and fidelity of quantum logic gates is essential to reach quantum advantage with future quantum computers. However, fast logic gates lead to increased leakage e…
Long-distance transmon coupler with CZ gate fidelity above
Fabian Marxer, Antti Vepsäläinen, Shan W. Jolin +36
Tunable coupling of superconducting qubits has been widely studied due to its importance for isolated gate operations in scalable quantum processor architectures. Here, we demonstr…
Demonstration of tunable three-body interactions between superconducting qubits
Tim Menke, William P. Banner, Thomas R. Bergamaschi +16
Nonpairwise multi-qubit interactions present a useful resource for quantum information processors. Their implementation would facilitate more efficient quantum simulations of molec…
Experimental demonstration of robustness under scaling errors for superadiabatic population transfer in a superconducting circuit
Shruti Dogra, Antti Vepsäläinen, Gheorghe Sorin Paraoanu
We study experimentally and theoretically the transfer of population between the ground state and the second excited state in a transmon circuit by the use of superadiabatic stimul…
Quantum transport and localization in 1d and 2d tight-binding lattices
Amir H. Karamlou, Jochen Braumüller, Yariv Yanay +16
Particle transport and localization phenomena in condensed-matter systems can be modeled using a tight-binding lattice Hamiltonian. The ideal experimental emulation of such a model…
Majorana representation of adiabatic and superadiabatic processes in three-level systems
Shruti Dogra, Antti Vepsäläinen, G. S. Paraoanu
We show that stimulated Raman adiabatic passage (STIRAP) and its superadiabatic version (saSTIRAP) have a natural geometric two-star representation on the Majorana sphere. In the c…
Superadiabatic population transfer in a three-level superconducting circuit
Antti Vepsäläinen, Sergey Danilin, Gheorghe Sorin Paraoanu
Adiabatic manipulation of the quantum state is an essential tool in modern quantum information processing. Here we demonstrate the speed-up of the adiabatic population transfer in…
Experimental state control by fast non-Abelian holonomic gates with a superconducting qutrit
S. Danilin, A. Vepsäläinen, G. S. Paraoanu
Quantum state manipulation with gates based on geometric phases acquired during cyclic operations promises inherent fault-tolerance and resilience to local fluctuations in the cont…
Quantum-enhanced magnetometry by phase estimation algorithms with a single artificial atom
S. Danilin, A. V. Lebedev, A. Vepsäläinen +3
Phase estimation algorithms are key protocols in quantum information processing. Besides applications in quantum computing, they can also be employed in metrology as they allow for…
Cross-coupling effects in circuit-QED stimulated Raman adiabatic passage
A. Vepsäläinen, G. S. Paraoanu
Stimulated Raman adiabatic passage is a quantum protocol that can be used for robust state preparation in a three-level system. It has been commonly employed in quantum optics, but…
Simulating spin chains using a superconducting circuit: gauge invariance, superadiabatic transport, and broken time-reversal symmetry
Antti Vepsäläinen, Gheorghe Sorin Paraoanu
Simulation of materials by using quantum processors is envisioned to be a major direction of development in quantum information science. Here we exploit the mathematical analogies…
Quantum Control in Qutrit Systems using Hybrid Rabi-STIRAP Pulses
Antti Vepsäläinen, Sergey Danilin, Elisabetta Paladino +2
We introduce and analyze theoretically a procedure that combines slow adiabatic STIRAP manipulation with short nonadiabatic Rabi pulses to produce any desired three-level state in…
Stimulated Raman adiabatic passage in a three-level superconducting circuit
K. S. Kumar, A. Vepsalainen, S. Danilin +1
The adiabatic manipulation of quantum states is a powerful technique that has opened up new directions in quantum engineering, enabling tests of fundamental concepts such as the Be…
Stückelberg interference in a superconducting qubit under periodic latching modulation
M. P. Silveri, K. S. Kumar, J. Tuorila +4
When the level separation of a qubit is modulated periodically across an avoided crossing, tunneling to the excited state - and consequently Landau-Zener-Stückelberg interference -…
Simulation of motional averaging using a superconducting circuit
J. Li, M. P. Silveri, K. S. Kumar +8
The possibility of using a quantum system to simulate another one has been recognized for a long time as an important research direction in quantum information and quantum computin…
Motional Averaging in a Superconducting Qubit
Jian Li, M. P. Silveri, K. S. Kumar +8
Superconducting circuits with Josephson junctions are promising candidates for developing future quantum technologies. Of particular interest is to use these circuits to study effe…