Extended Dicke quantum battery with interatomic interactions and driving field

• URL: http://arxiv.org/abs/2112.13226v1
• Date: Sat, 25 Dec 2021 12:18:15 GMT
• Title: Extended Dicke quantum battery with interatomic interactions and driving field
• Authors: Fu-Quan Dou, You-Qi Lu, Yuan-Jin Wang, Jian-An Sun
• Abstract summary: We investigate the charging process of quantum battery systems in an extended Dicke model with both atomic interactions and an external driving field. For the maximum charging power, we obtain the quantum advantage of the QB, which approximately satisfies a superlinear scaling relation $P_maxpropto Nalpha$. In the ultra-strong coupling regime, the atomic interaction can lead to a faster battery charging, and the quantum advantage $alpha = 1.88$ can be achieved.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We investigate the charging process of quantum battery (QB) systems in an extended Dicke model with both atomic interactions and an external driving field. We focus on the effects of the atomic interaction and the external driving field on the charging performance of QB and find that the maximum stored energy of QB has a critical phenomenon. We analyze the critical behavior and obtain the analytical expression of the critical atomic interaction. The dependence of the maximum stored energy, the energy quantum fluctuations and the maximum charging power on the number $N$ of the two-level systems are also discussed. In particular, for the maximum charging power, we obtain the quantum advantage of the QB, which approximately satisfies a superlinear scaling relation $P_{max}\propto N^{\alpha}$, where scaling exponent $\alpha$ varies with the number $N$ of the two-level systems. In the ultra-strong coupling regime, the atomic interaction can lead to a faster battery charging, and the quantum advantage $\alpha = 1.88$ can be achieved. While in the deep-strong coupling regime, the quantum advantage of the QB's maximum charging power is the same as that of the Dicke QB, i.e., $\alpha=1.5$.

Related papers

• Towards large-scale quantum optimization solvers with few qubits [59.63282173947468]
  We introduce a variational quantum solver for optimizations over $m=mathcalO(nk)$ binary variables using only $n$ qubits, with tunable $k>1$. We analytically prove that the specific qubit-efficient encoding brings in a super-polynomial mitigation of barren plateaus as a built-in feature.
  arXiv  Detail & Related papers  (2024-01-17T18:59:38Z)
• Variational-quantum-eigensolver-inspired optimization for spin-chain work extraction [39.58317527488534]
  Energy extraction from quantum sources is a key task to develop new quantum devices such as quantum batteries. One of the main issues to fully extract energy from the quantum source is the assumption that any unitary operation can be done on the system. We propose an approach to optimize the extractable energy inspired by the variational quantum eigensolver (VQE) algorithm.
  arXiv  Detail & Related papers  (2023-10-11T15:59:54Z)
• Quantum Dicke battery supercharging in the "bound luminocity" state [0.0]
  Dicke model describes an ensemble of two--level systems interacting with a single--mode electromagnetic wave in a resonator cavity. In order to charge the battery, a coupling between the ensemble of two--level systems and resonator cavity should be turned off at a certain moment of time. We derive analytically the superlinear law for the quantum battery charging power.
  arXiv  Detail & Related papers  (2023-09-21T19:01:16Z)
• Three-level Dicke quantum battery [0.8602553195689513]
  We propose a three-level Dicke QB and investigate its charging process. We find that the locked energy is positively related to the entanglement between the charger and the battery.
  arXiv  Detail & Related papers  (2023-08-02T14:53:40Z)
• Quantum battery based on dipole-dipole interaction and external driving field [2.3274138116397727]
  We propose an efficient charging quantum battery achieved by considering an extension Dicke model with dipole-dipole interaction and an external driving field. The maximum stored energy and maximum charging power are investigated by varying the number of atoms. In addition, the maximum charging power approximately satisfies a superlinear scaling relation $P_rm maxvarproptobeta Nalpha$, where the quantum advantage $alpha=1.6$ can be reached via optimizing the parameters.
  arXiv  Detail & Related papers  (2023-05-05T05:49:39Z)
• Scaling of energy and power in a large quantum battery-charger model [7.927685242174114]
  We investigate a multi-qubit quantum battery-charger model, focusing on its potential emulation on a superconducting qubit chip. By checking a diverse set of system configurations, we classify the system size scalings of $E_Brm max$ and $P_Brm max$. Our work provides an overall guide for expected features in experiments of quantum batteries emulated in superconducting qubit platforms.
  arXiv  Detail & Related papers  (2022-08-22T10:25:26Z)
• Cavity-Heisenberg spin chain quantum battery [7.3445112624891316]
  We propose a cavity-Heisenberg spin chain quantum battery with the long-range interactions and investigate its charging process. The performance of the CHS QB is substantially improved compared to the Heisenberg spin chain (HS) QB. We find that the maximum stored energy of the CHS QB has a critical phenomenon.
  arXiv  Detail & Related papers  (2022-06-21T08:29:14Z)
• Unimon qubit [42.83899285555746]
  Superconducting qubits are one of the most promising candidates to implement quantum computers. Here, we introduce and demonstrate a superconducting-qubit type, the unimon, which combines the desired properties of high non-linearity, full insensitivity to dc charge noise, insensitivity to flux noise, and a simple structure consisting only of a single Josephson junction in a resonator.
  arXiv  Detail & Related papers  (2022-03-11T12:57:43Z)
• Entanglement between a telecom photon and an on-demand multimode solid-state quantum memory [52.77024349608834]
  We show the first demonstration of entanglement between a telecom photon and a collective spin excitation in a multimode solid-state quantum memory. We extend the entanglement storage in the quantum memory for up to 47.7$mu$s, which could allow for the distribution of entanglement between quantum nodes separated by distances of up to 10 km.
  arXiv  Detail & Related papers  (2021-06-09T13:59:26Z)
• Mesoscopic quantum superposition states of weakly-coupled matter-wave solitons [58.720142291102135]
  We establish quantum features of an atomic soliton Josephson junction (SJJ) device. We show that the SJJ-model in quantum domain exhibits unusual features due to its effective nonlinear strength proportional to the square of total particle number. We have shown that the obtained quantum state is more resistant to few particle losses from the condensates if tiny components of entangled Fock states are present.
  arXiv  Detail & Related papers  (2020-11-26T09:26:19Z)
• Electrically tuned hyperfine spectrum in neutral Tb(II)(Cp$^{\rm{iPr5}}$)$_2$ single-molecule magnet [64.10537606150362]
  Both molecular electronic and nuclear spin levels can be used as qubits. In solid state systems with dopants, an electric field was shown to effectively change the spacing between the nuclear spin qubit levels. This hyperfine Stark effect may be useful for applications of molecular nuclear spins for quantum computing.
  arXiv  Detail & Related papers  (2020-07-31T01:48:57Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.