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Logical shadow tomography

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 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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WitrynaLogical shadow tomography: Efficient estimation of error-mitigated observables Hu, Hong-Ye Larose, Ryan You, Yizhuang Rieffel, Eleanor Wang, Zhihui Abstract In near … Witryna7 paź 2024 · Our results, which include algorithms for implementing shadow process tomography enable new techniques including evaluation of channel concatenation … lawn mower repair helena montana https://beadtobead.com

[2203.07263] Logical shadow tomography: Efficient estimation of …

WitrynaLogical shadow tomography: Efficient estimation of error-mitigated observables Hu, Hong-Ye Larose, Ryan You, Yizhuang Rieffel, Eleanor Wang, Zhihui Abstract In near-term quantum applications, reducing errors and improving device reliability is … 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. Witryna7 paź 2024 · Quantum process tomography is a critical capability for building quantum computers, enabling quantum networks, and understanding quantum sensors. Like quantum state tomography, the process tomography of an arbitrary quantum channel requires a number of measurements that scale exponentially in the number of … lawn mower repair hazelwood mo

Shadow tomography of quantum states - ACM Conferences

Category:Optimizing Shadow Tomography with Generalized Measurements

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Logical shadow tomography

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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 ... Witryna3 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.

Logical shadow tomography

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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 … WitrynaA rough way to think about quantum process tomography is you need to input a tomographically complete set of input states and measure the confusion matrix of those states in a tomographically complete basis. …

http://www.henryyuen.net/spring2024/lec5-shadow.pdf 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...

Witryna4 kwi 2024 · Our results, which include algorithms for implementing shadow process tomography, enable new techniques including evaluation of channel concatenation … WitrynaShadow tomography since proposed in has found a number of applications in quantum information processing, including the recently proposed process …

Witryna2 gru 2024 · I'm reading Huang et al. (2024) (nature physics), where the authors present a version of Aaronson's shadow tomography scheme as follows (see page 11 in the arXiv version): We want to estimate a state $\rho$. We apply a …

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... lawn mower repair hemphill rdWitrynaOur 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... lawn mower repair hayward wiWitrynaOur technique performs shadow tomography on a logical state to produce a memory-e cient classical reconstruction of the noisy density matrix. Using e cient classical post … lawn mower repair hendersonville ncWitryna11 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. lawn mower repair henderson ncWitryna24 lut 2024 · Logical shadow tomography: Efficient estimation of error-mitigated observables #11. Hong-Ye Hu (UC, San Diego and ; Harvard U. and ; NASA, Ames and ; RIACS, Mtn. View), ... Hamiltonian-Driven Shadow Tomography of Quantum States #21. Hong-Ye Hu (UC, San Diego), Yi-Zhuang You (UC, San Diego) (Feb 19, 2024) … lawn mower repair hephzibah gaWitryna10 lip 2024 · We generalize the classical shadow tomography scheme to a broad class of finite-depth or finite-time local unitary ensembles, known as locally scrambled quantum dynamics, where the unitary ensemble is invariant under local basis transformations. lawn mower repair hendersonville tnWitryna14 mar 2024 · Our technique performs shadow tomography on a logical state to produce a memory-efficient classical reconstruction of the noisy density matrix. Using … kanawha county sheriff\u0027s tax office