Quantum Transport of Charge Density Wave Electrons in Layered Materials
- URL: http://arxiv.org/abs/2310.10512v1
- Date: Mon, 16 Oct 2023 15:32:49 GMT
- Title: Quantum Transport of Charge Density Wave Electrons in Layered Materials
- Authors: John H. Miller Jr, Martha Y. Su\'arez-Villagr\'an and Johnathan O.
Sanderson
- Abstract summary: We discuss further evidence for quantum CDW electron transport.
We find that, for temperatures ranging from 9 to 474 K, CDW current-voltage plots of three trichalcogenide materials agree almost precisely.
We consider potential applications for thermally robust quantum information processing systems.
- Score: 12.991813293135195
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The charge density wave (CDW) is a condensate that often forms in layered
materials. It is known to carry electric current \emph{en masse}, but the
transport mechanism remains poorly understood at the microscopic level. Its
quantum nature is revealed by several lines of evidence. Experiments often show
lack of CDW displacement when biased just below the threshold for nonlinear
transport, indicating the CDW never reaches the critical point for classical
depinning. Quantum behavior is also revealed by oscillations of period $h/2e$
in CDW conductance vs. magnetic flux, sometimes accompanied by telegraph-like
switching, in $\text{TaS}_3$ rings above 77 K. Here we discuss further evidence
for quantum CDW electron transport. We find that, for temperatures ranging from
9 to 474 K, CDW current-voltage plots of three trichalcogenide materials agree
almost precisely with a modified Zener-tunneling curve and with time-correlated
soliton tunneling model simulations. In our model we treat the Schr\"{o}dinger
equation as an emergent classical equation that describes fluidic
Josephson-like coupling of paired electrons between evolving topological
states. We find that an extension of this \lq classically robust' quantum
picture explains both the $h/2e$ magnetoconductance oscillations and switching
behavior in CDW rings. We consider potential applications for thermally robust
quantum information processing systems.
Related papers
- Electron Transport Through a 1D Chain of Dopant-Based Quantum Dots [0.0]
The Fermi-Hubbard model is the prototypical model used to study quantum many-body systems.
Recent research has shown that the extended Fermi-Hubbard model is more accurate.
This research will lead to a better understanding of electron behavior in silicon-doped semiconductors.
arXiv Detail & Related papers (2024-02-06T16:41:59Z) - Quantumness and quantum to classical transition in the generalized Rabi
model [17.03191662568079]
We define the quantumness of a Hamiltonian by the free energy difference between its quantum and classical descriptions.
We show that the Jaynes-Cummings and anti Jaynes-Cummings models exhibit greater quantumness than the Rabi model.
arXiv Detail & Related papers (2023-11-12T18:24:36Z) - Non-linear chiral magnetic waves [0.0]
We report the first quantum simulation (on classical hardware) of the real-time dynamics of CMWs in Schwinger model.
For $m/g > 1$, the frequency of electric charge oscillations becomes much smaller than the frequency of the oscillations of the chiral charge.
arXiv Detail & Related papers (2023-05-09T18:00:01Z) - Soliton Confinement in a Quantum Circuit [0.0]
We analyze the confinement of sine-Gordon solitons into mesonic bound states in a one-dimensional quantum electronic circuit(QEC) array.
The interactions occurring naturally in the QEC array, due to tunneling of Cooper-pairs and pairs of Cooper-pairs, give rise to a non-integrable, interacting, lattice model of quantum rotors.
arXiv Detail & Related papers (2023-02-13T11:45:38Z) - Spin Current Density Functional Theory of the Quantum Spin-Hall Phase [59.50307752165016]
We apply the spin current density functional theory to the quantum spin-Hall phase.
We show that the explicit account of spin currents in the electron-electron potential of the SCDFT is key to the appearance of a Dirac cone.
arXiv Detail & Related papers (2022-08-29T20:46:26Z) - Experimental observation of thermalization with noncommuting charges [53.122045119395594]
Noncommuting charges have emerged as a subfield at the intersection of quantum thermodynamics and quantum information.
We simulate a Heisenberg evolution using laser-induced entangling interactions and collective spin rotations.
We find that small subsystems equilibrate to near a recently predicted non-Abelian thermal state.
arXiv Detail & Related papers (2022-02-09T19:00:00Z) - Evolution of a Non-Hermitian Quantum Single-Molecule Junction at
Constant Temperature [62.997667081978825]
We present a theory for describing non-Hermitian quantum systems embedded in constant-temperature environments.
We find that the combined action of probability losses and thermal fluctuations assists quantum transport through the molecular junction.
arXiv Detail & Related papers (2021-01-21T14:33:34Z) - Spin Entanglement and Magnetic Competition via Long-range Interactions
in Spinor Quantum Optical Lattices [62.997667081978825]
We study the effects of cavity mediated long range magnetic interactions and optical lattices in ultracold matter.
We find that global interactions modify the underlying magnetic character of the system while introducing competition scenarios.
These allow new alternatives toward the design of robust mechanisms for quantum information purposes.
arXiv Detail & Related papers (2020-11-16T08:03:44Z) - Generation, Characterization and Manipulation of Quantum Correlations in
Electron Beams [0.0]
Entanglement engineering plays a central role in quantum-enhanced technologies.
However, free electrons remain largely unexplored despite their great capacity to encode and manipulate quantum information.
arXiv Detail & Related papers (2020-07-23T16:55:39Z) - Zitterbewegung and Klein-tunneling phenomena for transient quantum waves [77.34726150561087]
We show that the Zitterbewegung effect manifests itself as a series of quantum beats of the particle density in the long-time limit.
We also find a time-domain where the particle density of the point source is governed by the propagation of a main wavefront.
The relative positions of these wavefronts are used to investigate the time-delay of quantum waves in the Klein-tunneling regime.
arXiv Detail & Related papers (2020-03-09T21:27:02Z) - Quantum decoherence by Coulomb interaction [58.720142291102135]
We present an experimental study of the Coulomb-induced decoherence of free electrons in a superposition state in a biprism electron interferometer close to a semiconducting and metallic surface.
The results will enable the determination and minimization of specific decoherence channels in the design of novel quantum instruments.
arXiv Detail & Related papers (2020-01-17T04:11:44Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.