Results 11 to 20 of about 37,755 (223)

Fermions without Fermion Fields [PDF]

Physical Review Letters, 2005
It is shown that an arbitrary Fermion hopping hamiltonian can be represented by a system with no fermion fields, generalising earlier results by M. Levin & X.G. Wen [Phys Rev B 67, 245316 (2003)]. All the operators in the hamiltonian of resulting description obey the principle of locality, that operators associated with different sites commute ...
Ball, Robin
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Fermion damping in a fermion-scalar plasma [PDF]

Physical Review D, 1999
In this article we study the dynamics of fermions in a fermion-scalar plasma. We begin by obtaining the effective in-medium Dirac equation in real time which is fully renormalized and causal and leads to the initial value problem. For a heavy scalar we find the novel result that the decay of the scalar into fermion pairs in the medium leads to damping ...
Boyanovsky, D., de Vega, H. J., Ng, Y. J., Lee, D. -S., Wang, S. -Y.   +4 more
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New Interacting Boson Fermion-Fermion Model results [PDF]

EPJ Web of Conferences
We present a new application of the Interacting Boson Model (IBM) and its extensions for describing double charge exchange reactions. The study of double charge exchange reactions induced by heavy ions involving candidate nuclei for neutrinoless double ...
García-Tecocoatzi H., Bijker R., Magaña-Vsevolodovna R.I., Santopinto E.   +3 more
doaj   +2 more sources

Fermion condensation and gapped domain walls in topological orders [PDF]

Journal of High Energy Physics, 2017
We study fermion condensation in bosonic topological orders in two spatial dimensions. Fermion condensation may be realized as gapped domain walls between bosonic and fermionic topological orders, which may be thought of as real-space phase transitions ...
Yidun Wan, Chenjie Wang
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Fermion-bags and a new origin for a fermion mass [PDF]

Proceedings of The 32nd International Symposium on Lattice Field Theory — PoS(LATTICE2014), 2015
The fermion bag is a powerful idea that helps to solve fermion lattice field theories using Monte Carlo methods. Some sign problems that had remained unsolved earlier can be solved within this framework. In this work we argue that the fermion bag also gives insight into a new mechanism of fermion mass generation, especially at strong couplings where ...
Chandrasekharan, S
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Emergent Magnetism, Heavy Electrons, and Pressure-Induced Reentrant Superconductivity in the Iron Substituted 4d Transition-Metal Sulfides. [PDF]

Adv Sci (Weinh)
This work illustrates that magnetic Fe substitution enables systematic modulation of physical properties of the putative unconventional superconductor Rh17S15. Iron doping uncovers delicate competition between weak ferromagnetism, spin‐glass states, heavy‐fermion signatures, and superconductivity.
Huang Y, Xin L, Zuo N, Li B, Zhou W, Alltrin D, Yu B, Yang H, Qian B, Lin WC, Sankar R, Smidman M, Xing X, Xu C, Liu X, Dai J, Qian D, Li S, Xu X.   +18 more
europepmc   +2 more sources

Fermionization of Two Distinguishable Fermions [PDF]

Physical Review Letters, 2012
In this work we study a system of two distinguishable fermions in a 1D harmonic potential. This system has the exceptional property that there is an analytic solution for arbitrary values of the interparticle interaction. We tune the interaction strength via a magnetic offset field and compare the measured properties of the system to the theoretical ...
Zürn, G., Serwane, F., Lompe, T., Wenz, A., Ries, M., Bohn, J., Jochim, S.   +6 more
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Hourglass fermions [PDF]

Nature, 2016
Published in Nature 532,189-194 (14 April 2016).
Wang, Zhijun, Alexandradinata, A., Cava, R. J., Bernevig, B. Andrei   +3 more
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Tangent Fermions: Dirac or Majorana Fermions on a Lattice Without Fermion Doubling

Annalen der Physik, 2023
Abstract Methods to discretize the Hamiltonian of a topological insulator or topological superconductor, without giving up on the topological protection of the massless excitations (respectively, Dirac fermions or Majorana fermions) are reviewed.
Beenakker, C. W. J., Donís Vela, A., Lemut, G., Pacholski, M. J., Tworzydło, J.   +4 more
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Dynamic chirality in the interacting boson fermion-fermion model [PDF]

, 2008
The chiral interpretation of twin bands in odd-odd nuclei was investigated in the interacting boson fermion-fermion model. The analysis of the wave functions has shown that the possibility for angular momenta of the valence proton, neutron and core to ...
De Angelis, G., Tonev, D., Brant, Slobodan, Ventura, A.   +3 more
core   +3 more sources