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  1. Article ; Online: Probing entanglement in a 2D hard-core Bose-Hubbard lattice.

    Karamlou, Amir H / Rosen, Ilan T / Muschinske, Sarah E / Barrett, Cora N / Di Paolo, Agustin / Ding, Leon / Harrington, Patrick M / Hays, Max / Das, Rabindra / Kim, David K / Niedzielski, Bethany M / Schuldt, Meghan / Serniak, Kyle / Schwartz, Mollie E / Yoder, Jonilyn L / Gustavsson, Simon / Yanay, Yariv / Grover, Jeffrey A / Oliver, William D

    Nature

    2024  

    Abstract: Entanglement and its propagation are central to understanding many physical properties of quantum ... ...

    Abstract Entanglement and its propagation are central to understanding many physical properties of quantum systems
    Language English
    Publishing date 2024-04-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 120714-3
    ISSN 1476-4687 ; 0028-0836
    ISSN (online) 1476-4687
    ISSN 0028-0836
    DOI 10.1038/s41586-024-07325-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 26: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)
    Zs.MG 9: Show issues
    Zs.MO 244: Show issues

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  2. Article: Hexagonal boron nitride as a low-loss dielectric for superconducting quantum circuits and qubits.

    Wang, Joel I-J / Yamoah, Megan A / Li, Qing / Karamlou, Amir H / Dinh, Thao / Kannan, Bharath / Braumüller, Jochen / Kim, David / Melville, Alexander J / Muschinske, Sarah E / Niedzielski, Bethany M / Serniak, Kyle / Sung, Youngkyu / Winik, Roni / Yoder, Jonilyn L / Schwartz, Mollie E / Watanabe, Kenji / Taniguchi, Takashi / Orlando, Terry P /
    Gustavsson, Simon / Jarillo-Herrero, Pablo / Oliver, William D

    Nature materials

    2022  Volume 21, Issue 4, Page(s) 398–403

    Abstract: Dielectrics with low loss at microwave frequencies are imperative for high-coherence solid-state quantum computing platforms. Here we study the dielectric loss of hexagonal boron nitride (hBN) thin films in the microwave regime by measuring the quality ... ...

    Abstract Dielectrics with low loss at microwave frequencies are imperative for high-coherence solid-state quantum computing platforms. Here we study the dielectric loss of hexagonal boron nitride (hBN) thin films in the microwave regime by measuring the quality factor of parallel-plate capacitors (PPCs) made of NbSe
    Language English
    Publishing date 2022-01-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 2088679-2
    ISSN 1476-4660 ; 1476-1122
    ISSN (online) 1476-4660
    ISSN 1476-1122
    DOI 10.1038/s41563-021-01187-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Book ; Online: Probing entanglement across the energy spectrum of a hard-core Bose-Hubbard lattice

    Karamlou, Amir H. / Rosen, Ilan T. / Muschinske, Sarah E. / Barrett, Cora N. / Di Paolo, Agustin / Ding, Leon / Harrington, Patrick M. / Hays, Max / Das, Rabindra / Kim, David K. / Niedzielski, Bethany M. / Schuldt, Meghan / Serniak, Kyle / Schwartz, Mollie E. / Yoder, Jonilyn L. / Gustavsson, Simon / Yanay, Yariv / Grover, Jeffrey A. / Oliver, William D.

    2023  

    Abstract: Entanglement and its propagation are central to understanding a multitude of physical properties of quantum systems. Notably, within closed quantum many-body systems, entanglement is believed to yield emergent thermodynamic behavior, yet a universal ... ...

    Abstract Entanglement and its propagation are central to understanding a multitude of physical properties of quantum systems. Notably, within closed quantum many-body systems, entanglement is believed to yield emergent thermodynamic behavior, yet a universal understanding remains challenging due to the non-integrability and computational intractability of most large-scale quantum systems. Quantum hardware platforms provide a means to study the formation and scaling of entanglement in interacting many-body systems. Here, we use a controllable $4 \times 4$ array of superconducting qubits to emulate a two-dimensional hard-core Bose-Hubbard lattice. We generate superposition states by simultaneously driving all lattice sites and extract correlation lengths and entanglement entropy across its many-body energy spectrum. We observe volume-law entanglement scaling for states at the center of the spectrum and a crossover to the onset of area-law scaling near its edges.
    Keywords Quantum Physics
    Subject code 612
    Publishing date 2023-06-04
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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  4. Book ; Online: Hexagonal Boron Nitride (hBN) as a Low-loss Dielectric for Superconducting Quantum Circuits and Qubits

    Wang, Joel I-J. / Yamoah, Megan A. / Li, Qing / Karamlou, Amir / Dinh, Thao / Kannan, Bharath / Braumueller, Jochen / Kim, David / Melville, Alexander J. / Muschinske, Sarah E. / Niedzielski, Bethany M. / Serniak, Kyle / Sung, Youngkyu / Winik, Roni / Yoder, Jonilyn L. / Schwartz, Mollie / Watanabe, Kenji / Taniguchi, Takashi / Orlando, Terry P. /
    Gustavsson, Simon / Jarillo-Herrero, Pablo / Oliver, William D.

    2021  

    Abstract: Dielectrics with low loss at microwave frequencies are imperative for high-coherence solid-state quantum computing platforms. We study the dielectric loss of hexagonal boron nitride (hBN) thin films in the microwave regime by measuring the quality factor ...

    Abstract Dielectrics with low loss at microwave frequencies are imperative for high-coherence solid-state quantum computing platforms. We study the dielectric loss of hexagonal boron nitride (hBN) thin films in the microwave regime by measuring the quality factor of parallel-plate capacitors (PPCs) made of NbSe2-hBN-NbSe2 heterostructures integrated into superconducting circuits. The extracted microwave loss tangent of hBN is bounded to be at most in the mid-10-6 range in the low temperature, single-photon regime. We integrate hBN PPCs with aluminum Josephson junctions to realize transmon qubits with coherence times reaching 25 $\mu$s, consistent with the hBN loss tangent inferred from resonator measurements. The hBN PPC reduces the qubit feature size by approximately two-orders of magnitude compared to conventional all-aluminum coplanar transmons. Our results establish hBN as a promising dielectric for building high-coherence quantum circuits with substantially reduced footprint and, with a high energy participation that helps to reduce unwanted qubit cross-talk.

    Comment: Supplementary materials not included in this submission
    Keywords Condensed Matter - Mesoscale and Nanoscale Physics ; Condensed Matter - Materials Science ; Quantum Physics
    Subject code 535
    Publishing date 2021-08-31
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

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