@article{Simone02,

title = {Is quantum computing green? An estimate for an energy-efficiency quantum advantage},

author = {Daniel Jaschke and Simone Montangero},

url = {https://dx.doi.org/10.1088/2058-9565/acae3e},

doi = {10.1088/2058-9565/acae3e},

year  = {2023},

date = {2023-01-01},

urldate = {2023-01-01},

journal = {Quantum Science and Technology},

volume = {8},

number = {2},

pages = {025001},

publisher = {IOP Publishing},

abstract = {The quantum advantage threshold determines when a quantum processing unit (QPU) is more efficient with respect to classical computing hardware in terms of algorithmic complexity. The 'green' quantum advantage threshold—based on a comparison of energetic efficiency between the two—is going to play a fundamental role in the comparison between quantum and classical hardware. Indeed, its characterization would enable better decisions on energy-saving strategies, e.g. for distributing the workload in hybrid quantum–classical algorithms. Here, we show that the green quantum advantage threshold crucially depends on (a) the quality of the experimental quantum gates and (b) the entanglement generated in the QPU. Indeed, for noisy intermediate-scale quantum hardware and algorithms requiring a moderate amount of entanglement, a classical tensor network emulation can be more energy-efficient at equal final state fidelity than quantum computation. We compute the green quantum advantage threshold for a few paradigmatic examples in terms of algorithms and hardware platforms, and identify algorithms with a power-law decay of singular values of bipartitions—with power-law exponent $alpha lesssim 1$—as the green quantum advantage threshold in the near future.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{PP_MCB02,

title = {Many-body correlations in one-dimensional optical lattices with alkaline-earth (-like) atoms},

author = {Valeriia Bilokon and Elvira Bilokon and Mari Carmen Ba nuls and Agnieszka Cichy and Andrii Sotnikov},

url = {https://arxiv.org/abs/2302.10854},

doi = {10.48550/arXiv.2302.10854},

year  = {2023},

date = {2023-06-17},

urldate = {2023-06-17},

journal = {arXiv preprint arXiv:2302.10854},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{PP_MCB01,

title = {A quantum information perspective on meson melting},

author = {Mari Carmen Banuls and Michal P Heller and Karl Jansen and Johannes Knaute and Viktor Svensson},

url = {https://arxiv.org/abs/2206.10528},

doi = {10.48550/arXiv.2206.10528},

year  = {2022},

date = {2022-06-21},

urldate = {2022-01-01},

journal = {arXiv preprint arXiv:2206.10528},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{PP_Simone04,

title = {Ab-initio two-dimensional digital twin for quantum computer benchmarking},

author = {Daniel Jaschke and Alice Pagano and Sebastian Weber and Simone Montangero},

url = {https://arxiv.org/abs/2210.03763},

year  = {2022},

date = {2022-10-07},

journal = {arXiv preprint arXiv:2210.03763},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Simone01,

title = {Experimental Realization of Optimal Time-Reversal on an Atom Chip for Quantum Undo Operations},

author = {Ivana Mastroserio and Stefano Gherardini and Cosimo Lovecchio and Tommaso Calarco and Simone Montangero and Francesco S Cataliotti and Filippo Caruso},

url = {https://onlinelibrary.wiley.com/doi/10.1002/qute.202200057},

year  = {2022},

date = {2022-01-01},

journal = {Advanced Quantum Technologies},

pages = {2200057},

publisher = {Wiley Online Library doi = 10.1002/qute.202200057},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Psi01,

title = {Probing Phases of Quantum Matter with an Ion-Trap Tensor-Network Quantum Eigensolver},

author = {Michael Meth and Viacheslav Kuzmin and Rick Bijnen and Lukas Postler and Roman Stricker and Rainer Blatt and Martin Ringbauer and Thomas Monz and Pietro Silvi and Philipp Schindler},

url = {https://link.aps.org/doi/10.1103/PhysRevX.12.041035},

doi = {10.1103/PhysRevX.12.041035},

year  = {2022},

date = {2022-12-01},

journal = {Phys. Rev. X},

volume = {12},

issue = {4},

pages = {041035},

publisher = {American Physical Society},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{PP_Simone03,

title = {QuOCS: The Quantum Optimal Control Suite},

author = {Marco Rossignolo and Thomas Reisser and Alastair Marshall and Phila Rembold and Alice Pagano and Philipp J Vetter and Ressa S Said and Matthias M Müller and Felix Motzoi and Tommaso Calarco and others},

url = {https://arxiv.org/abs/2212.11144},

doi = {https://doi.org/10.1016/j.cpc.2023.108782},

year  = {2022},

date = {2022-12-21},

urldate = {2022-12-21},

journal = {arXiv preprint arXiv:2212.11144},

abstract = {Quantum optimal control includes a family of pulse-shaping algorithms that aim to unlock the full potential of a variety of quantum technologies. The Quantum Optimal Control Suite (QuOCS) unites experimental focus and model-based approaches in a unified framework. Easy usage and installation presented here and the availability of various combinable optimization strategies is designed to improve the performance of many quantum technology platforms, such as color defects in diamond, superconducting qubits, atom- or ion-based quantum computers. It can also be applied to the study of more general phenomena in physics. In this paper, we describe the software and the toolbox of gradient-free and gradient-based algorithms. We then show how the user can connect it to their experiment. In addition, we provide illustrative examples where our optimization suite solves typical quantum optimal control problems, in both open- and closed-loop settings. Integration into existing experimental control software is already provided for the experiment control software Qudi (Binder et al., 2017 [41]), and further extensions are investigated and highly encouraged.



QuOCS is available from GitHub, under Apache License 2.0, and can be found on the PyPI repository.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Enrique01,

title = {Role of anomalous symmetry in $0textensuremath-ensuremathpi$ qubits},

author = {I. L. Egusquiza and A. I niguez and E. Rico and A. Villarino},

url = {https://link.aps.org/doi/10.1103/PhysRevB.105.L201104},

doi = {10.1103/PhysRevB.105.L201104},

year  = {2022},

date = {2022-05-01},

journal = {Phys. Rev. B},

volume = {105},

issue = {20},

pages = {L201104},

publisher = {American Physical Society},

keywords = {},

pubstate = {published},

tppubtype = {article}

}