Protected State Transfer via an Approximate Quantum Adder

Gatti, G.; Barberena, Diego; Sanz, Mikel; Solano, E.

doi:10.1038/s41598-017-06425-3

Cited by 4 publications

(4 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, recently it was proven that a general quantum adder performing the equal weight superposition of two unknown quantum states is forbidden in general . Nevertheless, the design and implementation of approximate quantum adders have led to some connections beyond expectation, which may have applications in different fields of quantum technologies. In particular, one can define quantum autoencoders based on implementations of approximate quantum adders …”

Section: Introductionmentioning

confidence: 99%

Experimental Implementation of a Quantum Autoencoder via Quantum Adders

et al. 2019

Self Cite

View full text Add to dashboard Cite

Quantum autoencoders allow for reducing the amount of resources in a quantum computation by mapping the original Hilbert space onto a reduced space with the relevant information. Recently, it is proposed to employ approximate quantum adders to implement quantum autoencoders in quantum technologies. Here, the experimental implementation of this proposal in the Rigetti cloud quantum computer is carried out employing up to three qubits. The experimental fidelities are in good agreement with the theoretical prediction, thus proving the feasibility to realize quantum autoencoders via quantum adders in state‐of‐the‐art superconducting quantum technologies.

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental Implementation of a Quantum Autoencoder via Quantum Adders

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…[10] has shown that superpositions of orthogonal qubit states can be produced with unit probability, and Ref. [11] has demonstrated that the state transfer can be protected via an approximate quantum adder. Recently, the probabilistic creation of superposition of two unknown quantum states has been demonstrated experimentally in linear optics [12] and nuclear magnetic resonance (NMR) [13].…”

Section: Introductionmentioning

confidence: 99%

Creation of superposition of arbitrary states encoded in two high-Q cavities

Liu¹,

Zhang²,

Guo³

et al. 2019

Opt. Express

View full text Add to dashboard Cite

The principle of superposition is a key ingredient for quantum mechanics. A recent work [M. Oszmaniec et al., Phys. Rev. Lett. 116, 110403 (2016)] has shown that a quantum adder that deterministically generates a superposition of two unknown states is forbidden. Here we propose a probabilistic approach for creating a superposition state of two arbitrary states encoded in two three-dimensional cavities. Our implementation is based on a three-level superconducting transmon qubit dispersively coupled to two cavities. Numerical simulations show that high-fidelity generation of the superposition of two coherent states is feasible with current circuit QED technology. Our method also works for other physical systems such as other types of superconducting qubits, natural atoms, quantum dots, and nitrogen-vacancy (NV) centers.

show abstract

“…Recently, it was proven that a quantum operation that adds two unknown quantum states is forbidden in general [24,25]. Since then, im-arXiv:1709.07409v2 [quant-ph] 17 Oct 2018 portant results in optimized approximate or probabilistic quantum adders have been analyzed, and in some cases implemented, which may find applications to different aspects of quantum technologies [24][25][26][27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

“…In the last years, the design and implementation of approximate quantum adders [24][25][26][27][28][29][30][31][32] has emerged with unexpected connections. Recently, it was proven that a quantum operation that adds two unknown quantum states is forbidden in general [24,25].…”

Section: Introductionmentioning

confidence: 99%

Quantum autoencoders via quantum adders with genetic algorithms

Lamata

Alvarez-Rodriguez

Martín-Guerrero

et al. 2018

Quantum Sci. Technol.

Self Cite

View full text Add to dashboard Cite

The quantum autoencoder is a recent paradigm in the field of quantum machine learning, which may enable an enhanced use of resources in quantum technologies. To this end, quantum neural networks with less nodes in the inner than in the outer layers were considered. Here, we propose a useful connection between quantum autoencoders and quantum adders, which approximately add two unknown quantum states supported in different quantum systems. Specifically, this link allows us to employ optimized approximate quantum adders, obtained with genetic algorithms, for the implementation of quantum autoencoders for a variety of initial states. Furthermore, we can also directly optimize the quantum autoencoders via genetic algorithms. Our approach opens a different path for the design of quantum autoencoders in controllable quantum platforms.

show abstract

Protected State Transfer via an Approximate Quantum Adder

Cited by 4 publications

References 35 publications

Experimental Implementation of a Quantum Autoencoder via Quantum Adders

Experimental Implementation of a Quantum Autoencoder via Quantum Adders

Creation of superposition of arbitrary states encoded in two high-Q cavities

Quantum autoencoders via quantum adders with genetic algorithms

Contact Info

Product

Resources

About