Energy current and its statistics in the nonequilibrium spin-boson model: Majorana fermion representation
نویسندگان
چکیده
منابع مشابه
Spin-spin correlators in the majorana representation.
In the Majorana representation of a spin 1/2 we find an identity which relates spin-spin correlators to one-particle fermionic correlators. This should be contrasted with the straightforward approach in which two-particle (four-fermion) correlators need to be calculated. We discuss applications to the analysis of the dynamics of a spin coupled to a dissipative environment and of a quantum detec...
متن کاملUnifying quantum heat transfer in a nonequilibrium spin-boson model with full counting statistics
Chen Wang,1,* Jie Ren,2,3,4,† and Jianshu Cao5,‡ 1Department of Physics, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, People’s Republic of China 2Center for Phononics and Thermal Energy Science, School of Physics Science and Engineering, Tongji University, 200092 Shanghai, People’s Republic of China 3China-EU Joint Center for Nanophononics, School of Physics Science and Engineering, T...
متن کاملNonequilibrium Temperature for Open Boson and Fermion Systems
The effective theory of an open boson or fermion system is studied, which evolves out of equilibrium with a time-dependent Hamiltonian Ĥ(t). A measure of nonequilibrium temperature for the open system evolving from an equilibrium is proposed as the time-averaged energy expectation value T (t) = Ti(〈Ĥ(t)〉Ψ/〈Î(t)〉Ψ), where Î(t), the action operator, satisfies the quantum Liouville-von Neumann equ...
متن کاملBoson-fermion transmutation and the statistics of anyons.
It is shown that, by allowing a transmutation between a boson and a fermion, the system with both bosons and fermions will have the statistical distribution function of an anyon. *E-mail: [email protected] Physical Review E51 (1995) 3729
متن کامل“Anticoherent” Spin States via the Majorana Representation
In this article we define and exhibit “anticoherent” spin states, which are in a sense “the opposite” of the familiar coherent spin states. Since the familiar coherent states are as “classical” as spin states can be, the anticoherent states may turn out to be better candidates for applications involving non-classical behaviors such as quantum entanglement. Thanks to the Majorana representation ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2017
ISSN: 1367-2630
DOI: 10.1088/1367-2630/aa6657