Interplay between Experimental and Theoretical Physics

M. A. B. Bég

Peter Dotti, Yifei Bai, Toshihiko Shimasaki +2 more

The interplay of various localizing mechanisms is a central topic of modern condensed matter physics. In this work we experimentally explore the interplay between quasiperiodic disorder and periodic driving, each of which in isolation is capable of driving a metal-insulator phase transition. Using a 1D quasiperiodic cold-atom chain we measure transport across the full phase diagram varying both drive strength and quasidisorder strength. We observe lobes of metallic phases bounded by quantum phase transitions which depend on both drive and disorder. While these observations are broadly consistent with expectations from a high-drive-frequency theoretical model, we also observe clear departures from the predictions of this model, including anomalous changes in localization behavior at lower drive frequency. We demonstrate experimentally and theoretically that understanding the full measured phase diagram requires an extension to commonly used approximate theories of Floquet matter.

E. M. Kessler

The role of dissipation in the emergence of coherent phenomena is ambiguous. On the one hand, the dissipative coupling to an environment is the biggest adversary of coherence, corrupting the quantum properties of a physical state. On the other hand, recent theoretical and experimental results revealed that dissipation itself can be the driving force behind the occurrence of coherent behavior. This Thesis theoretically investigates both aspects of this interplay in mesoscopic solid-state systems.

Pippard, Alfred Brian

A. Kuriyama, Toshio Marumori, Kenichi Matsuyanagi +2 more

Progress of Theoretical Physics Vol. 55 No. 5 (1976) pp. 1680–1683Representation of Nucleon Operators in the Product Space Composed of Pairing Bosons and “Quasi-Particles” Tōru Suzuki Progress of Theoretical Physics Vol. 56 No. 4 (1976) pp. 1140–1155Structure of the Anomalous 0+' Excited States in Spherical Even-Even Nuclei with N or Z ≈40 Saburo Iwasaki, Toshio Marumori, Fumihiko Sakata and Kenjiro Takada Progress of Theoretical Physics Vol. 56 No. 6 (1976) pp. 1786–1801A Semi-Microscopic Derivation of Coupling between Rotational and Intrinsic Motions. I Atsushi Kuriyama Progress of Theoretical Physics Vol. 60 No. 5 (1978) pp. 1366–1382Interplay of Pairing and Intrinsic Modes of Excitation in Nuclei. II Tōru Suzuki Progress of Theoretical Physics Vol. 61 No. 2 (1979) pp. 680–681Spurious Mode Due to Number Non-Conservation and the RPA Ground States Yoshinao Miyanishi and Goro Watanuki Progress of Theoretical Physics Vol. 61 No. 4 (1979) pp. 1082–1092Property of Many-Phonon Norm Matrix Tōru Suzuki, Masahiko Fuyuki and Kenichi Matsuyanagi Progress of Theoretical Physics Vol. 61 No. 6 (1979) pp. 1682–1696Dynamical Interplay of Pairing and Quadrupole Modes in Transitional Nuclei. I Tōru Suzuki, Masahiko Fuyuki and Kenichi Matsuyanagi Progress of Theoretical Physics Vol. 62 No. 3 (1979) pp. 690–705Dynamical Interplay of Pairing and Quadrupole Modes in Transitional Nuclei. II Tōru Suzuki, Masahiko Fuyuki and Kenichi Matsuyanagi Progress of Theoretical Physics Vol. 65 No. 5 (1981) pp. 1667–1683Dynamical Interplay of Pairing and Quadrupole Modes in Transitional Nuclei. III Tōru Suzuki, Masahiko Fuyuki and Kenichi Matsuyanagi Progress of Theoretical Physics Vol. 67 No. 5 (1982) pp. 1441–1455Attenuation Factors for B(E2) in the Microscopic Description of Multiphonon States Kenichi Matsuyanagi Progress of Theoretical Physics Supplement No.71 (1981) pp. 1–47Chapter 1. Present Status of the Microscopic Study of Low-Lying Collective States in Spherical and Transitional Nuclei Toshio Marumori, Kenjiro Takada and Fumihiko Sakata Progress of Theoretical Physics Supplement No.71 (1981) pp. 48–70Chapter 2. Outline of the Mode-Mode Coupling Theory Fumihiko Sakata, Toshio Marumori and Kenjiro Takada Progress of Theoretical Physics Supplement No.71 (1981) pp. 123–179Chapter 4. Dynamical Interplay between Pairing and Quadrupole Correlations Shigeru Tazaki, Kenjiro Takada, Kazunari Kaneko and Fumihiko Sakata Progress of Theoretical Physics Supplement No.71 (1981) pp. 180–220Chapter 5. Dynamical Interplay between Pairing and Quadrupole Correlations in Odd-Mass Nuclei Kazunari Kaneko, Kenjiro Takada, Fumihiko Sakata and Shigeru Tazaki