Entanglement of bosonic modes through an engineered exchange interaction.

Nature
Yvonne Y GaoR J Schoelkopf

Abstract

Quantum computation presents a powerful new paradigm for information processing. A robust universal quantum computer can be realized with any well controlled quantum system, but a successful platform will ultimately require the combination of highly coherent, error-correctable quantum elements with at least one entangling operation between them1,2. Quantum information stored in a continuous-variable system-for example, a harmonic oscillator-can take advantage of hardware-efficient quantum error correction protocols that encode information in the large available Hilbert space of each element3-5. However, such encoded states typically have no controllable direct couplings, making deterministic entangling operations between them particularly challenging. Here we develop an efficient implementation of the exponential-SWAP operation6 and present its experimental realization between bosonic qubits stored in two superconducting microwave cavities. This engineered operation is analogous to the exchange interaction between discrete spin systems, but acts within any encoded subspace of the continuous-variable modes. Based on a control rotation, the operation produces a coherent superposition of identity and SWAP operations between arbitr...Continue Reading

References

May 1, 1989·Physical Review Letters·G J Milburn
Apr 5, 2000·Nature·C H Bennett, D P DiVincenzo
Dec 1, 2000·Nature·D P DiVincenzoK B Whaley
Jun 13, 2002·Physical Review Letters·Artur K EkertL C Kwek
Nov 22, 2002·Physical Review Letters·Jaromír FiurásekRadim Filip
Oct 10, 2006·Physical Review Letters·Nicolas C MenicucciMichael A Nielsen
Jul 21, 2011·Physical Review Letters·Steven T Flammia, Yi-Kai Liu
Nov 28, 2015·Nature Communications·Brian VlastakisR J Schoelkopf
Apr 7, 2016·Science Advances·Raj B PatelGeoff J Pryde
May 28, 2016·Science·Chen WangR J Schoelkopf
Aug 27, 2016·Nature Communications·Pasi LähteenmäkiPertti J Hakonen
Sep 17, 2016·Physical Review Letters·Hoi-Kwan Lau, Martin B Plenio
Mar 11, 2017·Physical Review Letters·Hoi-Kwan LauChristian Weedbrook
Apr 1, 2017·Scientific Reports·Takafumi OnoShigeki Takeuchi
Jul 25, 2017·Nature Communications·Reinier W HeeresRobert J Schoelkopf
Feb 15, 2018·Nature Communications·S RosenblumR J Schoelkopf

❮ Previous
Next ❯

Citations

Dec 7, 2019·Physical Review Letters·Ben Q BaragiolaNicolas C Menicucci
Jan 11, 2020·Physical Review Letters·Connor T HannLiang Jiang
May 16, 2020·Physical Review Letters·H C J GanDzmitry Matsukevich
Aug 17, 2020·Physical Review Letters·Giacomo PantaleoniNicolas C Menicucci
Jan 30, 2021·Physical Review Letters·F LecocqJ Aumentado
Jun 12, 2021·Physical Review Letters·Lukáš Lachman, Radim Filip

❮ Previous
Next ❯

Methods Mentioned

BETA
chip
electron-beam lithography
SMA

Software Mentioned

eSWAP

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.