Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Uzdin, Raam"'
Autor:
Pandit, Tanmoy, Uzdin, Raam
Quantum error mitigation schemes (QEM) have greatly enhanced the efficiency of quantum computers, specifically focusing on reducing errors caused by interactions with the environment. Nevertheless, the presence of coherence errors, typically arising
Externí odkaz:
http://arxiv.org/abs/2407.06055
The conventional circuit paradigm, utilizing a limited number of gates to construct arbitrary quantum circuits, is hindered by significant noise overhead. For instance, the standard gate paradigm employs two CNOT gates for the partial CPhase rotation
Externí odkaz:
http://arxiv.org/abs/2401.09040
Autor:
Penshin, Pavel, Amro, Tamara, Zabelotsky, Ty, Abramovich, Amir, Pandit, Tanmoy, 'Attar, K. I. O Ben, Hen, Amir, Uzdin, Raam, Bar-Gill, Nir
Complex quantum systems and their various applications are susceptible to noise of coherent and incoherent nature. Characterization of noise and its sources is an open, key challenge in quantum technology applications, especially in terms of distingu
Externí odkaz:
http://arxiv.org/abs/2401.08291
Quantum processors can already execute tasks beyond the reach of classical simulation, albeit for artificial problems. At this point, it is essential to design error metrics that test the experimental accuracy of quantum algorithms with potential for
Externí odkaz:
http://arxiv.org/abs/2305.19359
Publikováno v:
npj Quantum Inf 9, 120 (2023)
Quantum Error Mitigation (QEM) enables the extraction of high-quality results from the presently-available noisy quantum computers. In this approach, the effect of the noise on observables of interest can be mitigated using multiple measurements with
Externí odkaz:
http://arxiv.org/abs/2303.05001
As quantum computers and simulators begin to produce results that cannot be verified classically, it becomes imperative to develop a variety of tools to detect and diagnose experimental errors on these devices. While state or process tomography is a
Externí odkaz:
http://arxiv.org/abs/2212.10771
Autor:
Henao, Ivan, Uzdin, Raam
Correlations are a valuable resource for quantum information processing and quantum thermodynamics. However, the preparation of some correlated states can carry a substantial cost that should be compared against its value. We show that classical corr
Externí odkaz:
http://arxiv.org/abs/2202.07192
Methods for measuring noise, purity changes, and entanglement entropy in quantum devices and systems
Autor:
Uzdin, Raam
We present methods for evaluating the rate of change in quantities during quantum evolution due to coupling to the environment (dissipation hereafter). The protocol is based on repeating a given quantum circuit (or quantum operation) twice, thrice, a
Externí odkaz:
http://arxiv.org/abs/2112.00546
Autor:
Pijn, Daniel, Onishchenko, Oleksiy, Hilder, Janine, Poschinger, Ulrich G., Schmidt-Kaler, Ferdinand, Uzdin, Raam
Recently, the principle of \textit{passivity} has been used to set bounds on the evolution of a microscopic quantum system with a thermal initial state. In this work, we experimentally demonstrate the utility of two passivity based frameworks: global
Externí odkaz:
http://arxiv.org/abs/2110.03277
Thermal equilibrium states are exponentially hard to distinguish at very low temperatures, making equilibrium quantum thermometry in this regime a formidable task. We present a thermometric scheme that circumvents this limitation, by using a two-leve
Externí odkaz:
http://arxiv.org/abs/2108.10469