Quantum Phase Properties of Photon Added and Subtracted Displaced Fock States
Sign Up to like & getrecommendations! Published in 2019 at "Annalen der Physik"
DOI: 10.1002/andp.201900141
Abstract: Quantum phase properties of photon added and subtracted displaced Fock states (and a set of quantum states which can be obtained as the limiting cases of these states) are investigated from a number of perspectives,… read more here.
Keywords: phase properties; phase; displaced fock; photon added ... See more keywords
Dynamical Quantum Phase Transitions in the 1D Nonintegrable Spin‐1/2 Transverse Field XZZ Model
Sign Up to like & getrecommendations! Published in 2021 at "Annalen der Physik"
DOI: 10.1002/andp.202000542
Abstract: Using the Jordan–Wigner mean‐field (JW‐MF) approach, the dynamical quantum phase transition (DQPT) in the 1D spin‐1/2 XZZ model is studied, where the presence of the transverse magnetic field breaks the U(1) symmetry of the Hamiltonian… read more here.
Keywords: phase; dynamical quantum; field; xzz model ... See more keywords
Quantum phase slips and voltage fluctuations in superconducting nanowires: Quantum phase slips and voltage fluctuations in superconducting nanowires
Sign Up to like & getrecommendations! Published in 2017 at "Protein Science"
DOI: 10.1002/prop.201600043
Abstract: We argue that quantum phase slips (QPS) may generate non-equilibrium voltage fluctuations in superconducting nanowires. In the low frequency limit we evaluate all cumulants of the voltage operator which obey Poisson statistics and show a… read more here.
Keywords: voltage fluctuations; superconducting nanowires; fluctuations superconducting; phase slips ... See more keywords
Quantum Phase Transitions in Conventional Matrix Product Systems
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-016-3163-z
Abstract: For matrix product states(MPSs) of one-dimensional spin-12$\frac {1}{2}$ chains, we investigate a new kind of conventional quantum phase transition(QPT). We find that the system has two different ferromagnetic phases; on the line of the two… read more here.
Keywords: quantum; matrix product; correlation; quantum correlation ... See more keywords
Quantum Phase Transition Induced by Magnetic Impurity
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Superconductivity and Novel Magnetism"
DOI: 10.1007/s10948-017-4360-6
Abstract: The Yu–Shiba–Rusinov bound states can arise around magnetic impurities in conventional superconductors. Competition between screened and unscreened states can lead to the quantum phase transition. We discuss basic properties of this quantum phase transition in… read more here.
Keywords: phase; transition induced; phase transition; induced magnetic ... See more keywords
Quantum criticality of fermion velocities and critical temperature nearby a putative quantum phase transition in the d-wave superconductors
Sign Up to like & getrecommendations! Published in 2022 at "Nuclear Physics B"
DOI: 10.1016/j.nuclphysb.2022.115651
Abstract: Quantum critical behaviors induced by a putative quantum phase transition is vigilantly investigated, which separates a d-wave superconducting and d-wave superconducting+X state below the superconducting dome of the d−wave superconductors with tuning the non-thermal doping… read more here.
Keywords: quantum phase; phase transition; fermion velocities; fermion ... See more keywords
Collective decay induce quantum phase transition in a well-controlled hybrid quantum system
Sign Up to like & getrecommendations! Published in 2021 at "Results in physics"
DOI: 10.1016/j.rinp.2021.103832
Abstract: Abstract Manipulation of the quantum phase transition (QPT) of the general Lipkin-Meshkov-Glick (LMG) model is studied in a well-controlled hybrid quantum system, with respect to the Bose–Einstein condensate (BEC) magnetically coupled to a quantum cantilever.… read more here.
Keywords: system; quantum phase; phase transition; controlled hybrid ... See more keywords
Topological quantum phase transition from mirror to time reversal symmetry protected topological insulator
Sign Up to like & getrecommendations! Published in 2017 at "Nature Communications"
DOI: 10.1038/s41467-017-01204-0
Abstract: Topological insulators constitute a new phase of matter protected by symmetries. Time-reversal symmetry protects strong topological insulators of the Z2 class, which possess an odd number of metallic surface states with dispersion of a Dirac… read more here.
Keywords: phase; phase transition; insulator; topological insulator ... See more keywords
Piezoelectricity and topological quantum phase transitions in two-dimensional spin-orbit coupled crystals with time-reversal symmetry
Sign Up to like & getrecommendations! Published in 2020 at "Nature Communications"
DOI: 10.1038/s41467-020-16058-2
Abstract: Finding new physical responses that signal topological quantum phase transitions is of both theoretical and experimental importance. Here, we demonstrate that the piezoelectric response can change discontinuously across a topological quantum phase transition in two-dimensional… read more here.
Keywords: phase; quantum; phase transitions; two dimensional ... See more keywords
Leaps of quantum phase
Sign Up to like & getrecommendations! Published in 2018 at "Nature Physics"
DOI: 10.1038/s41567-018-0162-4
Abstract: Energy levels in superconducting quantum devices are highly sensitive to charge fluctuations. Generally, this is considered a bug, but new work transforms this sensitivity into the defining feature of a novel device. read more here.
Keywords: quantum phase; leaps quantum;
Quenched nematic criticality and two superconducting domes in an iron-based superconductor
Sign Up to like & getrecommendations! Published in 2019 at "Nature Physics"
DOI: 10.1038/s41567-019-0694-2
Abstract: The nematic electronic state and its associated critical fluctuations have emerged as a potential candidate for the superconducting pairing in various unconventional superconductors. However, in most materials their coexistence with magnetically ordered phases poses a… read more here.
Keywords: phase; transition; nematic quantum; phase transition ... See more keywords