2024 Logical shadow tomography

Logical shadow tomography

Author: cfyw

August undefined, 2024

WitrynaIt turns out that shadow tomography allows us to estimate a large number of observables using a very small number of copies of the unknown state. Speci cally, the setup of shadow tomography is ... 10-qubit entanglement and parallel logic operations with a superconducting circuit, Phys. Rev. Lett., 119(180511), 2024. arXiv:1703.10302 ... Witryna7 paź 2024 · Our results, which include algorithms for implementing shadow process tomography enable new techniques including evaluation of channel concatenation …

Logical shadow tomography: Efficient estimation of error …

WitrynaOur technique performs shadow tomography on a logical state to produce a memory-efficient classical reconstruction of the noisy density matrix. Using efficient classical post-processing, one... Witryna6 paź 2024 · Quantum process tomography is a powerful tool for understanding quantum channels and characterizing properties of quantum devices. Inspired by recent advances using classical shadows in quantum state tomography [1], we have developed a classical shadow method, ShadowQPT, for quantum process … inked chic design

A brief history of tomography and CT - IAEA

Witryna11 wrz 2007 · Abstract Traditional quantum state tomography requires a number of measurements that grows exponentially with the number of qubits n. But using ideas from computational learning theory, we show that one can do exponentially better in a statistical setting. Witryna10 sty 2024 · Classical shadow tomography learns the quantum system by randomly evolving the system and following with a measurement that collapses the quantum wavefunction. The classical descriptions of the... Witryna23 lis 2024 · Shadow tomography is conventionally analyzed based on outcomes of ideal projective measurements on the system upon application of randomized unitaries. Here, we suggest that shadow tomography can be much more straightforwardly formulated for generalized measurements, or positive operator valued measures. mobile tag and title office

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[1711.01053] Shadow Tomography of Quantum States - arXiv.org

Witrynarequired in classical shadow tomography [Huang et al.Nat. Phys. 16, 1050 (2024)]. Unlike previous approaches to shadow tomography, our protocol can be implemented using only global operations, as opposed to qubit-selective logic gates, which makes it particularly well-suited to analog quantum Witryna16 mar 2024 · Here, we introduce logical shadow tomography as a versatile error mitigation method. Our technique uses a stabilizer code to encode information in a … mobile tables with storageWitryna3 lis 2024 · Shadow Tomography of Quantum States Scott Aaronson We introduce the problem of *shadow tomography*: given an unknown -dimensional quantum mixed state , as well as known two-outcome measurements , estimate the probability that accepts , to within additive error , for each of the measurements. inked by the mafia man

"Witryna18 lip 2024 · To our knowledge, the most sample-efficient results for pure-state tomography come from setting the rank to $1$ in generic mixed-state tomography algorithms, which can be computationally... " - Logical shadow tomography

Logical shadow tomography

Experimental Single-Setting Quantum State Tomography

WitrynaOur technique performs shadow tomography on a logical state to produce a memory-efficient classical reconstruction of the noisy density matrix. Using efficient classical … Witryna5 wrz 2024 · Classical shadow tomography is a powerful randomized measurement protocol for predicting many properties of a quantum state with few measurements. Two classical shadow protocols have been extensively studied in the literature: the single-qubit (local) Pauli measurement, which is well suited for predicting local operators but …

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Witryna16 lip 2024 · The method of classical shadows proposed by Huang, Kueng, and Preskill heralds remarkable opportunities for quantum estimation with limited measurements. Yet its relationship to established... Witryna4 kwi 2024 · Our results, which include algorithms for implementing shadow process tomography, enable new techniques including evaluation of channel concatenation …

WitrynaOur technique performs shadow tomography on a logical state to produce a memory-efficient classical reconstruction of the noisy density matrix. Using efficient classical post-processing, one... Witryna20 cze 2024 · Shadow tomography of quantum states Author: Scott Aaronson University of Texas at Austin, USA University of Texas at Austin, USA View Profile …

Witryna14 mar 2024 · Our technique performs shadow tomography on a logical state to produce a memory-eﬃcient classical reconstruction of the noisy density matrix. Using eﬃcient classical post-processing, one can mitigate errors by projecting a general nonlinear function of the noisy density matrix into the codespace. WitrynaShadow tomography since proposed in has found a number of applications in quantum information processing, including the recently proposed process …

Witryna9 wrz 2024 · Fermionic partial tomography via classical shadows Andrew Zhao, 1Nicholas C. Rubin,2 and Akimasa Miyake 1Center for Quantum Information and Control, Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87106, USA 2Google Research, Mountain View, California, 94043, USA …

WitrynaRealization of strong coupling between deterministic single-atom arrays and a high-finesse miniature optical cavity mobile table saw cabinetWitrynaLogical shadow tomography: Efficient estimation of error-mitigated observables Hu, Hong-Ye Larose, Ryan You, Yizhuang Rieffel, Eleanor Wang, Zhihui Abstract In near … mobile tables with lockable storageWitryna10 sty 2024 · Recent works have shown that classical shadow tomography can be applied to fermionic systems and analogue quantum simulators based on fermionic … mobile tan postbank funktioniert nichtWitrynaOur technique performs shadow tomography on a logical state to produce a memory-efficient classical reconstruction of the noisy density matrix. Using efficient classical post-processing, one can mitigate errors by projecting a general nonlinear function of the noisy density matrix into the codespace. mobile task force canonWitryna9 sty 2024 · A method for mitigating errors in near-term quantum computers utilizing randomized measurements explores the trade-off between the number of measurement settings and the number of repetitions of each measurement. mobile tables for the elderlyWitryna16 lis 2024 · Recently introduced shadow tomography protocols use “classical shadows” of quantum states to predict many target functions of an unknown … inked carsWitrynaTomography grew to be important and all the major manufacturers had equipment for sale. Specialist equipment for curved plane dental tomography was invented. Along … mobile table saw stand with outfeed table