Related papers: Reply to the comment on "High-Power Collective Charging of a Solid-State Quantum Battery" by Haowei Xu and Ju Li

Related papers

Star Topology Optimizes the Charging Power of Quantum Batteries [39.27725073249277]
Quantum batteries are quantum systems that store energy and deliver it on demand.<n>While collective charging protocols and global control are known to enhance charging power, it remains unclear how the battery's internal interaction architecture itself constrains performance.<n>Here we study interacting fermionic batteries whose internal couplings are encoded by a graph adjacency matrix, charged via a simple interaction with an external fermionic device.
arXiv Detail & Related papers (2026-03-11T15:03:54Z)
Quantum Charging Advantage in Superconducting Solid-State Batteries [15.41964054143452]
We experimentally RefCdemonstrate quantum charging advantage (QCA) in a scalable solid-state quantum battery.<n>We show how double-excitation Hamiltonians for two-level systems promote scalable QCA.<n>We study the performance of quantum charging compared to its uncorrelated classical counterpart.
arXiv Detail & Related papers (2026-02-09T12:55:21Z)
Comment on "High-Power Collective Charging of a Solid-State Quantum Battery" [0.0]
We make it clear that the $sqrtN$ enhancement in [Physical Review Letters 120, 117702] is purely a classical effect, not attributable to quantum entanglement or collective phenomena. We believe that using the term "quantum battery" in this context may be inappropriate and misleading.
arXiv Detail & Related papers (2024-10-23T14:46:31Z)
Scrambling in the Charging of Quantum Batteries [3.5621685463862356]
This Letter investigates the role of quantum scrambling in quantum batteries and its effect on optimal power and charging times. By analyzing the dynamics of out-of-time-order correlators, our findings indicate that quantum scrambling does not necessarily lead to faster charging, despite its potential for accelerating the process.
arXiv Detail & Related papers (2024-09-16T16:11:55Z)
Technology and Performance Benchmarks of IQM's 20-Qubit Quantum Computer [56.435136806763055]
IQM Quantum Computers is described covering both the QPU and the rest of the full-stack quantum computer. The focus is on a 20-qubit quantum computer featuring the Garnet QPU and its architecture, which we will scale up to 150 qubits. We present QPU and system-level benchmarks, including a median 2-qubit gate fidelity of 99.5% and genuinely entangling all 20 qubits in a Greenberger-Horne-Zeilinger (GHZ) state.
arXiv Detail & Related papers (2024-08-22T14:26:10Z)
On the Liouville-von Neumann equation for unbounded Hamiltonians [44.99833362998488]
We present and discuss a characterization of the domain of the Liouville superoperator originally due to M. Courbage. We also provide, with explicit proofs, some domains of essential self-adjointness (cores) of the Liouvillian.
arXiv Detail & Related papers (2024-08-09T10:13:35Z)
Local-projective-measurement-enhanced quantum battery capacity [13.61700291107261]
capacity is an important indicator for a battery. We study the enhancement of the battery capacity under local projective measurements on a subsystem of the quantum state.
arXiv Detail & Related papers (2024-05-06T01:11:25Z)
Two Quantum Entangled Cheshire Cats [14.618082583488812]
In the original thought experiment of the Quantum Cheshire Cat, the physical properties of the cat (state) can be decoupled from its quantum entities. Here, we conceive a new thought experiment that exploits quantum entanglement with weak (value) measurement.
arXiv Detail & Related papers (2023-03-30T01:02:29Z)
Reply to `Comment on "Absence versus Presence of Dissipative Quantum Phase Transition in Josephson Junctions"' [0.0]
We reply to the comments on our previous paper Physical Review Letters, Vol. 129, 087001 (2022), raised by Th'eo S'epulcre, Serge Florens, and Izak Snyman in arXiv:2210.00742.
arXiv Detail & Related papers (2022-10-19T08:06:15Z)
NLTS Hamiltonians from good quantum codes [14.00987234726578]
The NLTS (No Low-Energy Trivial State) conjecture posits that there exist families of Hamiltonians with all low energy states of non-trivial complexity.<n>We prove this conjecture by showing that the recently discovered families of constant-rate and linear-distance QLDPC codes correspond to NLTS local Hamiltonians.
arXiv Detail & Related papers (2022-06-27T12:22:56Z)
A construction of Combinatorial NLTS [22.539300644593936]
NLTS (No Low-Energy Trivial State) conjecture of Freedman and Hastings [2014] posits that there exist families of Hamiltonians with all low energy states of high complexity. Here, we prove a weaker version called the NLTS, where a quantum circuit lower bound is shown against states that violate a (small) constant fraction of local terms.
arXiv Detail & Related papers (2022-06-06T16:55:34Z)
On a tracial version of Haemers bound [20.98023024846862]
We extend upper bounds on the quantum independence number and the quantum Shannon capacity of graphs to their counterparts in the commuting operator model. We call our bound the tracial Haemers bound, and we prove that it is multiplicative with respect to the strong product.
arXiv Detail & Related papers (2021-07-06T12:09:33Z)
Comment on "Fluctuations in Extractable Work Bound the Charging Power of Quantum Batteries" [0.0]
We point out a few mistakes in the analysis and obtain the correct bound on the charging power. In this Comment, we point out a few mistakes in the analysis and obtain the correct bound on the charging power.
arXiv Detail & Related papers (2021-02-09T16:24:08Z)
A Bright Source of Telecom Single Photons Based on Quantum Frequency Conversion [44.31954732613996]
Single photon sources are essential for quantum networking and communication. Semiconductor quantum dots are among the most promising candidates, but their typical emission wavelength renders them unsuitable for use in fibre networks. Here, we present quantum frequency conversion of near-infrared photons from a bright quantum dot to the telecommunication C-band.
arXiv Detail & Related papers (2021-01-27T19:02:14Z)
Reply to: Reply to "On the heat transfer across a vacuum gap mediated by Casimir force" [0.0]
Here we reply to the comment of Li et al. (arXiv:2009.09377) on the preprint (arXiv:2003.00760) of our publication (Z. Naturforsch. A 75, 803-807; DOI:10.1515/zna-2020-0204).
arXiv Detail & Related papers (2020-10-06T14:45:40Z)
Reply to "Comment on "Quantum Time Crystals from Hamiltonians with Long-Range Interactions"" [23.87373187143897]
In this reply we answer one-by-one all questions raised in the discussion. As for the ideological dispute, it brightly highlights a bizarre nature of time crystalline order in closed quantum systems.
arXiv Detail & Related papers (2020-05-13T13:51:01Z)
Comment on Quantum Interference between Light Sources Separated by 150 Million Kilometers Deng et al. PHYSICAL REVIEW LETTERS 123, 080401 (2019) [0.0]
Quantum Interference between Light Sources Separated by 150 Million Kilometers by Deng et al. This is a comment on the paper : Quantum Interference between Light Sources Separated by 150 Million Kilometers by Deng et al.
arXiv Detail & Related papers (2020-01-07T17:42:07Z)

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