Isotropy and control of dissipative quantum dynamics

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Dissipative Quantum Control ∗

Nature, in the form of dissipation, inevitably intervenes in our efforts to control a quantum system. In this talk we show that although we cannot, in general, compensate for dissipation by coherent control of the system, such effects are not always counterproductive; for example, the transformation from a thermal (mixed) state to a cold condensed (pure state) can only be achieved by non-unitar...

متن کامل

Quantum control of dissipative systems

We study the effect of dissipation, i.e., uncontrollable interactions of a quantum system with the environment, on one’s ability to control the system. In particular we show that dissipation, although often considered undesirable, opens up unique possibilities for quantum control by removing the constraint of unitary evolution, which restricts the set of reachable states and imposes bounds on t...

متن کامل

Quantum dissipative dynamics with a Surrogate Hamiltonian

D i s s e r t a t i o n zur Erlangung des akademischen Grades d o c t o r r e r u m n a t u r a l i u m When we invent worlds in physics we would have them to be mathematically consistent continuations of the visible world into the invisible ...even when it is beyond human capability to decide which, if any, of those worlds is the true one. John S. Bell, Six possible worlds of quantum mechanics

متن کامل

Quantum Dissipative Dynamics: A Numerically Exact Methodology

A fully quantum mechanical methodology for simulating the time evolution of low-dimensional systems in harmonic dissipative environments is presented. The key features of the method are the numerical construction of accurate propagators based on physically motivated reference Hamiltonians and the decomposition of the path integral into a series of shorter time operations, which leads to an iter...

متن کامل

Dissipative Quantum Control of a Spin Chain.

A protocol is discussed for preparing a spin chain in a generic many-body state in the asymptotic limit of tailored nonunitary dynamics. The dynamics require the spectral resolution of the target state, optimized coherent pulses, engineered dissipation, and feedback. As an example, we discuss the preparation of an entangled antiferromagnetic state, and argue that the procedure can be applied to...

متن کامل

ذخیره 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: Physical Review A

سال: 2016

ISSN: 2469-9926,2469-9934

DOI: 10.1103/physreva.94.012119