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Implementing a universal gate set on a logical qubit encoded in an oscillator

Autor: Reinier W. Heeres, Philip Reinhold, Nissim Ofek, Luigi Frunzio, Liang Jiang, Michel H. Devoret, Robert J. Schoelkopf

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)

A logical qubit is a two-dimensional subspace of a higher dimensional system, whose manipulation requires precise control over the whole system. Here the authors demonstrate a control strategy which exploits precise knowledge of the Hamiltonian to ma

Externí odkaz: https://doaj.org/article/758b2258665742e59f49875e60ae21fb

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Anyonic interference and braiding phase in a Mach-Zehnder interferometer

Autor: Hemanta Kumar Kundu, Sourav Biswas, Nissim Ofek, Vladimir Umansky, Moty Heiblum

Publikováno v: Nature Physics. 19:515-521

The fractional quantum Hall states have long been predicted to be a testing ground of fractional (anyonic) exchange statistics. These topological states harbor quasiparticles with fractional charges of both abelian and non-abelian characters. The qua

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61ddcbab47fe55e9c2ce07eff0d3094b
https://doi.org/10.1038/s41567-022-01899-z

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Implementing a universal gate set on a logical qubit encoded in an oscillator

Autor: Nissim Ofek, Liang Jiang, Reinier Heeres, Philip Reinhold, Michel Devoret, Robert Schoelkopf, Luigi Frunzio

Publikováno v: Nature Communications
Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)

A logical qubit is a two-dimensional subspace of a higher dimensional system, chosen such that it is possible to detect and correct the occurrence of certain errors. Manipulation of the encoded information generally requires arbitrary and precise con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d3cce8541f78498193dab42712621d5
https://doi.org/10.1038/s41467-017-00045-1

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The Local Nature Of Incompressibility Of Quantum Hall Effect

Autor: E. M. Kendirlik, Vladimir Umansky, Sırrı Batuhan Kalkan, Afif Siddiki, S. Sirt, Nissim Ofek

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
Nature Communications

Since the experimental realization of the integer quantum Hall effect in a two-dimensional electron system, the interrelation between the conductance quantization and the topological properties of the system has been investigated. Assuming that the t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b823affebd14b9e974f20e7e771ee8e4
https://aperta.ulakbim.gov.tr/record/50921

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Comparing and Combining Measurement-Based and Driven-Dissipative Entanglement Stabilization*

Autor: Yehan Liu, Katrina Sliwa, Robert Schoelkopf, Michael Hatridge, Nissim Ofek, Anirudh Narla, Shyam Shankar, Luigi Frunzio, Michel Devoret

Publikováno v: Physical Review X, Vol 6, Iss 1, p 011022 (2016)

We demonstrate and contrast two approaches to the stabilization of qubit entanglement by feedback. Our demonstration is built on a feedback platform consisting of two superconducting qubits coupled to a cavity which are measured by a nearly-quantum-l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dab0d76063c30741ad661c8ce055f939
https://doaj.org/article/2c16654ca11d4f64b291a256fa356f7d

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Extending the lifetime of a quantum bit with error correction in superconducting circuits

Autor: Reinier Heeres, Yehan Liu, Mazyar Mirrahimi, Brian Vlastakis, Michel Devoret, Steven Girvin, Luigi Frunzio, Zaki Leghtas, Philip Reinhold, Robert Schoelkopf, Andrei Petrenko, Nissim Ofek, Liang Jiang

Publikováno v: Nature. 536(7617)

Quantum error correction (QEC) can overcome the errors experienced by qubits1 and is therefore an essential component of a future quantum computer. To implement QEC, a qubit is redundantly encoded in a higher-dimensional space using quantum states wi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abb9ac3db91ee47296abae4438d5b16f
https://pubmed.ncbi.nlm.nih.gov/27437573

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Continuous quantum nondemolition measurement of the transverse component of a qubit

Autor: Yanhui Liu, K. Sliwa, Shantanu Mundhada, Anirudh Narla, Michel Devoret, Nissim Ofek, Robert Schoelkopf, Shyam Shankar, Uri Vool, E. Zalys-Geller, Steven Girvin, Luigi Frunzio

Quantum jumps of a qubit are usually observed between its energy eigenstates, also known as its longitudinal pseudo-spin component. Is it possible, instead, to observe quantum jumps between the transverse superpositions of these eigenstates? We answe

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Interference between two indistinguishable electrons from independent sources

Autor: Izhar Neder, Vladimir Umansky, Yunchul Chung, Moty Heiblum, Diana Mahalu, Nissim Ofek

Publikováno v: Nature. 448:333-337

Very much like the ubiquitous quantum interference of a single particle with itself, quantum interference of two independent, but indistinguishable, particles is also possible. For a single particle, the interference is between the amplitudes of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3309511f49dbcd07dbc09afbbf47631e
https://doi.org/10.1038/nature05955

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Characterizing entanglement of an artificial atom and a cavity cat state with Bell’s inequality

Autor: Michel Devoret, Michael Hatridge, Yehan Liu, Luigi Frunzio, Zaki Leghtas, K. Sliwa, Luyan Sun, Jacob Blumoff, Mazyar Mirrahimi, Brian Vlastakis, Robert Schoelkopf, Nissim Ofek, Liang Jiang, Andrei Petrenko

Publikováno v: Nature Communications
Nature Communications, Nature Publishing Group, 2015, 6, pp.8970 ⟨10.1038/ncomms9970⟩
Nature Communications, 2015, 6, pp.8970 ⟨10.1038/ncomms9970⟩

The Schrodinger's cat thought experiment highlights the counterintuitive concept of entanglement in macroscopically distinguishable systems. The hallmark of entanglement is the detection of strong correlations between systems, most starkly demonstrat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdcaa53e2c4c98825087c5e15decc41e
https://hal.inria.fr/hal-01266469

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A quantum memory with near-millisecond coherence in circuit QED

Autor: Nissim Ofek, Michel Devoret, Liang Jiang, Robert Schoelkopf, Wolfgang Pfaff, K. Sliwa, Reinier Heeres, Michael Hatridge, Christopher Axline, Kevin Chou, Chen Wang, Luigi Frunzio, Eric Holland, Jacob Blumoff, Matthew Reagor

Publikováno v: Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2016, 94 (1), ⟨10.1103/PhysRevB.94.014506⟩
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2016, 94 (1), ⟨10.1103/PhysRevB.94.014506⟩

Significant advances in coherence render superconducting quantum circuits a viable platform for fault-tolerant quantum computing. To further extend capabilities, highly coherent quantum systems could act as quantum memories for these circuits. A usef

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