Superfluidity and space-time translation symmetry breaking.

@article{Wilczek2013SuperfluidityAS,
  title={Superfluidity and space-time translation symmetry breaking.},
  author={Frank Wilczek},
  journal={Physical review letters},
  year={2013},
  volume={111 25},
  pages={
          250402
        }
}
  • F. Wilczek
  • Published 27 August 2013
  • Medicine, Physics
  • Physical review letters
I present a simple model that exhibits a temporal analogue of superconducting crystalline (Larkin-Ovchinnikov-Ferrell-Fulde) ordering, with a time-dependent order parameter. I sketch designs for minimally dissipative ac circuits, all based on time translation symmetry (τ) invariant dynamics, exploiting weak links (Josephson effects). These systems violate τ spontaneously. I also discuss effective theories of that phenomenon, and space-time generalizations. 
Higgs time crystal in a high- Tc superconductor
We propose to induce a time crystalline state in a high-$T_c$ superconductor, by optically driving a sum resonance of the Higgs mode and a Josephson plasma mode. The generic cubic process that
Mean-field thermodynamic quantum time-space crystal: Spontaneous breaking of time-translation symmetry in a macroscopic fermion system
A model demonstrating existence of a thermodynamically stable quantum time-space crystal has been proposed and studied. This state is characterized by an order parameter periodic in both real and
Imaginary Time Crystal of Thermal Quantum Matter
Spontaneous symmetry breaking is responsible for rich quantum phenomena from crystalline structures to superconductivity. This concept was boldly extended to the breaking of time translation, opening
Discrete Time Crystals in the Absence of Manifest Symmetries or Disorder in Open Quantum Systems.
TLDR
A semiclassical approach reveals the emergence of a robust discrete time-crystalline phase in the thermodynamic limit in which metastability, dissipation, and interparticle interactions play a crucial role.
Observation of a Time Quasicrystal and Its Transition to a Superfluid Time Crystal.
We report experimental realization of a quantum time quasicrystal and its transformation to a quantum time crystal. We study Bose-Einstein condensation of magnons, associated with coherent spin
Quantum Time Crystals from Hamiltonians with Long-Range Interactions.
TLDR
This study proposes a form of a Hamiltonian for which the unitary dynamics exhibits the time crystalline behavior and breaks continuous TTS, based on a spin-1/2 many-body Hamiltonian which has long-range multispin interactions in the form of spin strings, thus bypassing previously known no-go theorems.
Absence of Quantum Time Crystals.
TLDR
A no-go theorem is proved that rules out the possibility of time crystals defined as such, in the ground state or in the canonical ensemble of a general Hamiltonian, which consists of not-too-long-range interactions.
Thermodynamic quantum time-space crystal and pseudogap state in superconducting cuprates
A model demonstrating existence of a thermodynamically stable quantum time-space crystal has been proposed and studied. This state is characterized by an order parameter periodic in both real and
Clean Floquet Time Crystals: Models and Realizations in Cold Atoms.
TLDR
It is pointed out that time crystals can generally exist in systems without disorder, and a series of clean quasi-one-dimensional models under Floquet driving are proposed to demonstrate this unexpected result in principle.
Ju l 2 01 9 Continuous time crystals from static Hamiltonians with long-range interactions
Time crystals correspond to a phase of matter where time-translational symmetry (TTS) is broken. Up to date, they are well studied in open quantum systems, where external drive allows to break
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 47 REFERENCES
Realization of a Josephson Switch
It has been proposed that intermittent weak links between spontaneously broken symmetry systems can give rise to a novel type of time crystal. Here a practical construction is analyzed in greater
Introduction to Superconductivity
We have seen how the conductivity of a metal is limited by collisions, which determine the electron mean free path. After a collision, an electron completely loses all memory of its quantum state as
The Physics of Organic Superconductors and Conductors
Historical Surveys.- General Reviews.- Physical Properties of Quasi-One-Dimensional Organic Conductors.- Electron-Electron Interactions at Low Temperatures and Phase Transitions in
Introduction to Superconductivity
Appropriate for intermediate or advanced courses in superconductivity, this edition has been revised to incorporate the many new developments in superconductivity. Expanded topic coverage includes
Nature
  • R. Rosenfeld
  • Medicine
    Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery
  • 2009
TLDR
I am writing with a simple plea to balance the voluminous articles about treatment in your journal with a modicum of information about nature and caring effects to rekindle the perception of physicians as healers, not only treaters, who relish the gifts of nature, and foster the humanistic aspect of medicine that has thrived for millennia.
Eksp. Teor. Fiz
  • Eksp. Teor. Fiz
  • 2013
Novel Superfluids
  • Novel Superfluids
  • 2013
PRL
  • PRL
  • 2013
Phys
  • Rev. Lett. 111, 070402
  • 2013
...
1
2
3
4
5
...