Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Jandura, Sven"'
We investigate quantum error correction protocols for neutral atoms quantum processors in the presence of atom loss. We complement the surface code with loss detection units (LDU) and analyze its performances by means of circuit-level simulations for
Externí odkaz:
http://arxiv.org/abs/2412.07841
We present a deterministic protocol for the preparation of arbitrary entangled states in the symmetric Dicke subspace of $N$ spins coupled to a common cavity mode. By combining a new geometric phase gate, an analytic solution of the noisy quantum cha
Externí odkaz:
http://arxiv.org/abs/2409.12932
Autor:
Jandura, Sven, Pupillo, Guido
We consider stabilizer measurements for surface codes with neutral atoms and identify gate protocols that minimize logical error rates in the presence of a fundamental error source -- spontaneous emission from Rydberg states. We demonstrate that logi
Externí odkaz:
http://arxiv.org/abs/2405.16621
High-rate quantum error correcting (QEC) codes with moderate overheads in qubit number and control complexity are highly desirable for achieving fault-tolerant quantum computing. Recently, quantum error correction has experienced significant progress
Externí odkaz:
http://arxiv.org/abs/2404.13010
Autor:
Cao, Alec, Eckner, William J., Yelin, Theodor Lukin, Young, Aaron W., Jandura, Sven, Yan, Lingfeng, Kim, Kyungtae, Pupillo, Guido, Ye, Jun, Oppong, Nelson Darkwah, Kaufman, Adam M.
Publikováno v:
Nature 634, 315-320 (2024)
Many-particle entanglement is a key resource for achieving the fundamental precision limits of a quantum sensor. Optical atomic clocks, the current state-of-the-art in frequency precision, are a rapidly emerging area of focus for entanglement-enhance
Externí odkaz:
http://arxiv.org/abs/2402.16289
Autor:
Ma, Shuo, Liu, Genyue, Peng, Pai, Zhang, Bichen, Jandura, Sven, Claes, Jahan, Burgers, Alex P., Pupillo, Guido, Puri, Shruti, Thompson, Jeff D.
Publikováno v:
Nature 622, 279 (2023)
The development of scalable, high-fidelity qubits is a key challenge in quantum information science. Neutral atom qubits have progressed rapidly in recent years, demonstrating programmable processors and quantum simulators with scaling to hundreds of
Externí odkaz:
http://arxiv.org/abs/2305.05493
We present two protocols for implementing deterministic non-local multi-qubit quantum gates on qubits coupled to a common cavity mode. The protocols rely only on a classical drive of the cavity modes, while no external drive of the qubits is required
Externí odkaz:
http://arxiv.org/abs/2303.13127
Publikováno v:
PRX Quantum 4, 020336 (2023)
Robust gate sequences are widely used to reduce the sensitivity of gate operations to experimental imperfections. Typically, the optimization minimizes the average gate error, however, recent work in quantum error correction has demonstrated that the
Externí odkaz:
http://arxiv.org/abs/2210.06879
Autor:
Ollitrault, Pauline J, Jandura, Sven, Miessen, Alexander, Burghardt, Irene, Martinazzo, Rocco, Tacchino, Francesco, Tavernelli, Ivano
Publikováno v:
Quantum 7, 1139 (2023)
The simulation of quantum dynamics calls for quantum algorithms working in first quantized grid encodings. Here, we propose a variational quantum algorithm for performing quantum dynamics in first quantization. In addition to the usual reduction in c
Externí odkaz:
http://arxiv.org/abs/2203.02521
Autor:
Jandura, Sven, Pupillo, Guido
Publikováno v:
Quantum 6, 712 (2022)
We identify time-optimal laser pulses to implement the controlled-Z gate and its three qubit generalization, the C$_2$Z gate, for Rydberg atoms in the blockade regime. Pulses are optimized using a combination of numerical and semi-analytical quantum
Externí odkaz:
http://arxiv.org/abs/2202.00903