Varga, Zoltan Shu, Yinan Ning, Jiaxin Truhlar, Donald G
Published in
Electronic Structure

Dissociation and energy transfer in high-energy collisions of O2 play important roles in simulating thermal energy content and heat flux in flows around hypersonic vehicles. Furthermore, atomic oxygen reactions on the vehicle surface are an important contributor to heat shield erosion. Molecular dynamics modeling is needed to better understand the ...

Adhikari, Manoj Singh Sahil, Shaik Tarun Naidu, Palatla Babasri Roy, Aseervadam Thushar Devendra, Mandapati Goutham, Uppala
Published in
Journal of Physics: Conference Series

Power outages on normal CMOS circuit is very high it can be reduced by using the adiabatic technique. Adiabatic technique is used in the pull up part of CMOS logic. Power loss of CMOS Logic is in terms of heat. Adiabatic is an efficient technique where some of the energy stored in the load and it is used for next inputs without dissipating as heat....

Oliveira, Murilo H. Higgins, Gerard Zhang, Chi Predojević, Ana Hennrich, Markus Bachelard, Romain Villas-Boas, Celso J.

We propose a scheme to dissipatively produce steady-state entanglement in a two-qubit system, via an interaction with a bosonic mode. The system is driven into a stationary entangled state, while we compensate the mode dissipation by injecting energy via a coherent pump field. We also present a scheme which allows us to adiabatically transfer all t...

Fehse, F. David, M. Pioro-Ladrière, M. Coish, W.A.

Population-transfer schemes are commonly used to convert information robustly stored in some quantum system for manipulation and memory into more macroscopic degrees of freedom for measurement. These schemes may include, e.g., spin-to-charge conversion for spins in quantum dots, detuning of charge qubits between a noise-insensitive operating point ...

Froustey, Julien Pitrou, Cyril
Published in
Journal of Cosmology and Astroparticle Physics

Neutrino oscillations and mean-field effects considerably enrich the phenomenology of neutrino evolution in the early Universe. Taking into account these effects, most notably the neutrino self-interaction mean-field contribution, we revisit the problem of the evolution of primordial neutrino asymmetries including for the first time the complete ex...

Comparin, Tommaso Mezzacapo, Fabio Robert-de-Saint-Vincent, Martin Roscilde, Tommaso

Spontaneous symmetry breaking (SSB) is a property of Hamiltonian equilibrium states which, in the thermodynamic limit, retain a finite average value of an order parameter even after a field coupled to it is adiabatically turned off. In the case of quantum spin models with continuous symmetry, we show that this adiabatic process is also accompanied ...

Bougron, Jean-François Joye, Alain Pillet, Claude-Alain

We study a class of dynamical semigroups $(\mathbb{L}^n)_{n\in\mathbb{N}}$ that emerge, by a Feynman--Kac type formalism, from a random quantum dynamical system $(\mathcal{L}_{\omega_n}\circ\cdots\circ\mathcal{L}_{\omega_1}(\rho_{\omega_0}))_{n\in\mathbb{N}}$ driven by a Markov chain $(\omega_n)_{n\in\mathbb{N}}$. We show that the almost sure large...

Do, Thi-Hong-Hai Phan, Van-Nham
Published in
Journal of Physics: Condensed Matter

The excitonic condensate in semimetal and semiconducting materials with the assistance of the phonons in both the adiabatic and anti-adiabatic regimes has been investigated. In the framework of the random phase approximation, we analyse the static excitonic susceptibility function once the electrons and holes are described in the extended Falicov–K...

Caravelli, Francesco Wit, Ghislaine Coulter-De Garcia-Pintos, Luis Pedro Hamma, Alioscia

Quantum nano-devices are fundamental systems in quantum thermodynamics that have been the subject of profound interest in recent years. Among these, quantum batteries play a very important role. In this paper we lay down a theory of random quantum batteries and provide a systematic way of computing the average work and work fluctuations in such dev...

Comparin, Tommaso Opler, Alvin Macaluso, Elia Biella, Alberto Polychronakos, Alexios P. Mazza, Leonardo

We study the spin of the localised quasiparticle excitations of lowest-Landau-level quantum Hall states defined on a disk. The spin that we propose satisfies the spin-statistics relation and can be used to reconstruct the topological geometric phase associated to the exchange of two arbitrarily chosen quasiparticles. Since it is related to the quad...