M. S. Sarandy

Many-Body Localization Induced by Correlated Disorder in Interacting Superconducting Qubits

Thiago R. Girão Souza, A. Saguia, Alan C. Santos, M. S. Sarandy

The failure of quantum thermalization due to Many-Body Localization (MBL) has evolved from a theoretical concept in spin chains to an experimental reality in synthetic quantum platforms, most notably superconducting circuits based on transmon qubits. Despite its significance, the MBL transition has …

Many-Body Localization Induced by Correlated Disorder in Interacting Superconducting Qubits

Thiago R. Girão Souza, A. Saguia, Alan C. Santos, M. S. Sarandy

The failure of quantum thermalization due to Many-Body Localization (MBL) has evolved from a theoretical concept in spin chains to an experimental reality in synthetic quantum platforms, most notably superconducting circuits based on transmon qubits. Despite its significance, the MBL transition has …

br, es (code pays fourni par la source)

Quantum Charging Advantage in Superconducting Solid-State Batteries

Chang-Kang Hu, Chilong Liu, Jingchao Zhao, Liuzhu Zhong et autres

Quantum battery, as a novel energy storage device, offers the potential for unprecedented efficiency and performance beyond the capabilities of classical systems, with broad implications for future quantum technologies. Here, we experimentally \RefC{demonstrate quantum charging advantage (QCA)} in a scalable solid-state quantum …

Quantum Charging Advantage in Superconducting Solid-State Batteries

Chang-Kang Hu, Chilong Liu, Jingchao Zhao, Liuzhu Zhong et autres

Quantum battery, as a novel energy storage device, offers the potential for unprecedented efficiency and performance beyond the capabilities of classical systems, with broad implications for future quantum technologies. Here, we experimentally demonstrate quantum charging advantage (QCA) in a scalable solid-state quantum …

cn, br, es (code pays fourni par la source)

Ergotropy-based quantum thermodynamics

J. M. Z. Choquehuanca, P. A. C. Obando, M. S. Sarandy, F. M. de Paula

We introduce an ergotropy-based formulation of quantum thermodynamics, which provides a strong connection between average heat and von Neumann entropy. By adopting this formulation, we can reinterpret the infinitesimal average heat in terms of the infinitesimal change of the passive state associated …

br, Afrique du Sud (code pays fourni par la source)

Variational simulation of quantum phase transitions induced by boundary fields

Alan Duriez, A. Saguia, M. S. Sarandy

The characterization of quantum phase transitions is a fundamental task for the understanding of quantum phases of matter, with a number of potential applications in quantum technologies. In this work, we use digital quantum simulation as a resource to theoretically and experimentally …

br (code pays fourni par la source)

Variational simulation of quantum phase transitions induced by boundary fields

Alan Duriez, A. Saguia, M. S. Sarandy

The characterization of quantum phase transitions is a fundamental task for the understanding of quantum phases of matter, with a number of potential applications in quantum technologies. In this work, we use digital quantum simulation as a resource to theoretically and experimentally …

Quantum battery supercharging via counter-diabatic dynamics

L. F. C. de Moraes, Alan Duriez, A. Saguia, Alan C. Santos et autres

Abstract We introduce a counter-diabatic (CD) approach for deriving Hamiltonians modeling superchargable quantum batteries (QBs). A necessary requirement for the supercharging process is the existence of multipartite interactions among the cells of the battery. Remarkably, this condition may be insufficient no matter …

br, es (code pays fourni par la source)

Qubit dynamics of ergotropy and environment-induced work

J. M. Z. Choquehuanca, P. A. C. Obando, F. M. de Paula, M. S. Sarandy

We investigate the dynamics of ergotropy in open systems under Markovian and non-Markovian evolutions. In this scenario, we begin by formulating the ergotropy of an arbitrary qubit state in terms of energy and coherence. Thus we determine the conditions for ergotropy freezing …

br, Afrique du Sud (code pays fourni par la source)

Localization effects in disordered quantum batteries

Mohammad B. Arjmandi, Hamidreza Mohammadi, A. Saguia, M. S. Sarandy et autres

We investigate the effect of localization on the local charging of quantum batteries (QBs) modeled by disordered spin systems. Two distinct schemes based on the transverse-field random Ising model are considered, with Ising couplings defined on a Chimera graph and on a …

ir, br (code pays fourni par la source)

Localization effects in disordered quantum batteries

Mohammad B. Arjmandi, Hamidreza Mohammadi, A. Saguia, M. S. Sarandy et autres

We investigate the effect of localization on the local charging of quantum batteries (QBs) modeled by disordered spin systems. Two distinct schemes based on the transverse-field random Ising model are considered, with Ising couplings defined on a Chimera graph and on a …

ir, br (code pays fourni par la source)

Non-Markovianity through entropy-based quantum thermodynamics

J. M. Z. Choquehuanca, F. M. de Paula, M. S. Sarandy

We introduce a generalized approach to characterize the non-Markovianity of quantum dynamical maps via breakdown of monotonicity of thermodynamic functions. By adopting an entropy-based formulation of quantum thermodynamics, we use the relationship between heat and entropy to propose a measure of non-Markovianity …

br (code pays fourni par la source)