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76 037 (0,171s)

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Thermodynamic analogy for quantum phase transitions at zero temperature

Thermodynamic analogy for quantum phase transitions at zero temperature...

BG - Jaderná, atomová a molekulová fyzika, urychlovače

  • 2005
  • Jx
Result

Impact of quantum phase transitions on excited-level dynamics

Impact of quantum phase transitions on excited-level dynamics...

BG - Jaderná, atomová a molekulová fyzika, urychlovače

  • 2008
  • Jx
Result

Excited state quantum phase transitions in many-body systems

Excited state quantum phase transitions in many-body systems...

BG - Jaderná, atomová a molekulová fyzika, urychlovače

  • 2008
  • Jx
Result

Excited-state phase transition and onset of chaos in quantum optical models

and chaos in the Jaynes-Cummings and Dicke models of quantum optics. We show that both models exhibit a chain of excited-state quantum phase transitions demarcating the upper edgeof the superradiant phase...

BE - Teoretická fyzika

  • 2011
  • Jx
  • Link
Result

Quantum phase transitions for excited states

The impact of the ground-state quantum phase transitions on the evolution of excited levels in the critical parameter region is discussed. The analysis is focused on systems with first-and second-order transitions ...

BG - Jaderná, atomová a molekulová fyzika, urychlovače

  • 2009
  • D
Result

Coulomb analogy for non-hermitian degeneracies near quantum phase transitions (Article No. 100601)

Coulomb analogy for non-hermitian degeneracies near quantum phase transitions...

BE - Teoretická fyzika

  • 2007
  • Jx
Result

Atomic scale control and visualization of topological quantum phase transition in π-conjugated polymers driven by their length

Quantum phase transitions (QPTs) driven by quantum fluctuations are transitions between distinct quantum phases of matter. At present, they are poorly understood phase transi...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2021
  • Jimp
  • Link
Result

Monodromy and excited-state quantum phase transitions in integrable systems: collective vibrations of nuclei

Monodromy and excited-state quantum phase transitions in integrable systems: collective vibrations of nuclei...

BG - Jaderná, atomová a molekulová fyzika, urychlovače

  • 2006
  • Jx
Result

Static vs. dynamic phases of quantum many-body systems

We summarize the concept of excited-state quantum phase transitions with an emphasis to the distinction of quantum phases that exist on both sides of the transition. Our considerations are illustr...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2019
  • D
  • Link
Result

Quantum phase transitions in finite algebraic systems

We discuss features of quantum phase transitions affecting collective dynamics of many-body systems. Due to a finite number of collective degrees of freedom and quantum critical phenomena for both the ground and ex...

BG - Jaderná, atomová a molekulová fyzika, urychlovače

  • 2011
  • Jx
  • Link
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