Experimental Realization of Optimal Noise Estimation for a General Pauli Channel

Chiuri, Andrea; Rosati, Valeria; Vallone, Giuseppe; Pádua, S.; Imai, Hiroshi; Giacomini, Sandro; Macchiavello, Chiara; Mataloni, Paolo

doi:10.1103/physrevlett.107.253602

Cited by 60 publications

(49 citation statements)

References 22 publications

(32 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is therefore much cheaper than full process tomography and it can be easily accessed in the lab without posing any particular restriction on the nature of the physical system under consideration. In particular, for quantum optical systems it is easily implementable with present-day technologies [21]. We tested the method for significant qubit channels and it turned out to give extremely good results for various forms of noise.…”

mentioning

confidence: 99%

Detecting Lower Bounds to Quantum Channel Capacities

Macchiavello

Sacchi

2016

Phys. Rev. Lett.

View full text Add to dashboard Cite

We propose a method to detect lower bounds to quantum capacities of a noisy quantum communication channel by means of few measurements. The method is easily implementable and does not require any knowledge about the channel. We test its efficiency by studying its performance for most well known single qubit noisy channels and for the generalised Pauli channel in arbitrary finite dimension.arXiv:1510.00219v2 [quant-ph]

show abstract

mentioning

confidence: 99%

Detecting Lower Bounds to Quantum Channel Capacities

Macchiavello

Sacchi

2016

Phys. Rev. Lett.

View full text Add to dashboard Cite

show abstract

“…We notice that two-qubit logic gate and single-qubit gate have been experimentally observed in several physical systems including trapped ions [49], optical system [50], a semiconductor quantum dot [51], neutral atoms [52], and diamond nitrogen-vacancy centers [53]. On the other hand, the experimental realization of the noisy environments such as dephasing noise, bitflip noise, and anisotropic Pauli noises has been reported with linear optical elements [41,54,55]. What is more, Liu et al [56] have recently demonstrated an all-optical experiment which allows one to drive the open quantum system from the Markovian to the non-Markovian regime and to control the information flow between the system and the environment.…”

Section: Discussionmentioning

confidence: 97%

Deterministic joint remote preparation of an arbitrary two-qubit state in noisy environments

Liu

2015

Quantum Inf Process

View full text Add to dashboard Cite

Using four Einstein-Podolsky-Rosen (EPR) states as the shared quantum channel, we investigate the deterministic joint remote preparation of an arbitrary twoqubit state in the presence of noisy environments through the analytical solution of the master equation in the Lindblad form. By means of unitary matrix decomposition method, quantum logic circuit for the deterministic joint remote state preparation (JRSP) protocol is first constructed. Then, we analytically derive the average fidelities of the deterministic JRSP process under the influence of Pauli noises, zero-temperature and high-temperature reservoirs acting on the four EPR pairs. It is found that the average fidelities under the action of different noises display different evolution behaviors. Moreover, for the specific noises examined in this paper, in the long-time limit, the dephasing noise and the zero-temperature environment have the relatively weak effect on their respective average fidelities, whereas the isotropic noise and the hightemperature environment have the relatively strong effect.

show abstract

“…The two crystals are tuned in such a way that they perform a rapid succession of Pauli operatorsσ x ,σ y ,σ z , thus generating white noise on the state. 32,33 In the inset of Fig. 1a, we show typical experimental curves for the work W ρ (θ, θ) calculated according to Eq.…”

Section: Resultsmentioning

confidence: 99%

Experimental extractable work-based multipartite separability criteria

et al. 2017

View full text Add to dashboard Cite

A thermodynamic theory of quantum entanglement as well as the establishment of rigorous formal connections between the laws of thermodynamics and the phenomenology of entanglement are currently open areas of investigation. In this quest, a core problem is embodied by the understanding of the role that entanglement plays in processes of work extraction. Here, by considering information thermodynamics-based protocols, we answer the question "Is it possible to infer, quantitatively, quantum correlations by considering work-extraction schemes?". Our experimental settings consist of suitably designed multi-photon optical interferometers able to address the case of both bipartite and multipartite entangled states. We compare the performance of such criteria to that of witnesses of entanglement based on the violation of Bell-like tests, showing their inherently different nature. Our work contributes strongly to the ongoing efforts in establishing photonic systems as a platform for experiments in information thermodynamics.

show abstract

Experimental Realization of Optimal Noise Estimation for a General Pauli Channel

Cited by 60 publications

References 22 publications

Detecting Lower Bounds to Quantum Channel Capacities

Detecting Lower Bounds to Quantum Channel Capacities

Deterministic joint remote preparation of an arbitrary two-qubit state in noisy environments

Experimental extractable work-based multipartite separability criteria

Contact Info

Product

Resources

About