Environmental-induced work extraction

• URL: http://arxiv.org/abs/2310.17809v1
• Date: Wed, 25 Oct 2023 16:54:18 GMT
• Title: Environmental-induced work extraction
• Authors: Rasim Volga Ovali, Shakir Ullah, Mehmet Gunay and Mehmet Emre Tasgin
• Abstract summary: A local measurement extracts work as a backaction in a system of two entangled cavities. We show that this makes nature assign a textitfixed amount of work to a particular entanglement degree. We also show that such a change in the character of the motion introduces curvature in spacetime according to general relativity.
• Score: 0.5461938536945723
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: A local measurement extracts work as a backaction, e.g., in a system of two entangled cavities: first cavity, $a$, comprises a piston and the measurement is carried out on the second cavity, $b$. When no one makes a measurement on the cavity $b$, i.e., it is simply placed in vacuum; environmental monitoring results in the coherent states as the einselected pointer states (the measurement basis) [PRL 70, 1187 (1993)]. This makes the measurement, that nature itself performs, a Gaussian one with a fixed strength $\lambda=1$. We show that this makes nature assign a \textit{fixed} amount of work to a particular entanglement degree $0\leq \xi(r) \leq 1$, i.e., $W=\xi(r)\times(\bar{n}\hbar\omega_a)$, nothing that the term in parenthesis is the entire thermal energy. Afterwards, we show that this phenomenon applies quite generally, i.e, not restricted to a two-cavities system. We also touch on the influence of inherited symmterization entanglement in this context. We can arrive an additional phenomenon by considering that work is simply the process of converting randomly moving microscopic ingredients~(vanishing mean-velocity) into a directional one, i.e, with a nonzero mean-velocity. We show that such a change in the character of the motion introduces curvature in spacetime according to general relativity. This phenomenon is the first demonstration of a quantitative relation between entanglement and curvature using solely the quantum optics arguments.

Related papers

• Diffusive entanglement growth in a monitored harmonic chain [0.0]
  We find that entanglement grows diffusively ($S sim t1/2$) for a large class of initial Gaussian states. We propose a modified quasi-particle picture which accounts for all of these main features and agrees quantitatively well with our essentially exact numerical results.
  arXiv  Detail & Related papers  (2024-03-06T20:07:25Z)
• Theory of free fermions under random projective measurements [43.04146484262759]
  We develop an analytical approach to the study of one-dimensional free fermions subject to random projective measurements of local site occupation numbers. We derive a non-linear sigma model (NLSM) as an effective field theory of the problem.
  arXiv  Detail & Related papers  (2023-04-06T15:19:33Z)
• Quantum fluctuations, particles and entanglement: solving the quantum measurement problems [0.0]
  The so-called quantum measurement problems are solved from a new perspective. One of the main observations is that the basic entities of our world are it particles, elementary or composite.
  arXiv  Detail & Related papers  (2023-02-15T18:42:49Z)
• On parametric resonance in the laser action [91.3755431537592]
  We consider the selfconsistent semiclassical Maxwell--Schr"odinger system for the solid state laser. We introduce the corresponding Poincar'e map $P$ and consider the differential $DP(Y0)$ at suitable stationary state $Y0$.
  arXiv  Detail & Related papers  (2022-08-22T09:43:57Z)
• A quantum stochastic equivalence leads to a retrocausal model for measurement consistent with macroscopic realism [0.0]
  We show how retrocausality arises naturally from within quantum mechanics, and explain quantum measurement consistently with macroscopic realism. A Deutsch-like 'causal consistency' and Born's rule emerge naturally. For macroscopic superpositions, the macroscopic outcome of the measurement is considered determined prior to the onset of the measurement.
  arXiv  Detail & Related papers  (2022-05-12T13:10:20Z)
• Quantum fluctuations, particles and entanglement: a discussion towards the solution of the quantum measurement problems [0.0]
  The quantum measurement problems are revisited from a new perspective. A few well-known puzzles such as the Schr"odinger cat conundrum and the EPR paradox are briefly reviewed.
  arXiv  Detail & Related papers  (2021-11-29T17:22:27Z)
• Stochastic behavior of outcome of Schur-Weyl duality measurement [45.41082277680607]
  We focus on the measurement defined by the decomposition based on Schur-Weyl duality on $n$ qubits. We derive various types of distribution including a kind of central limit when $n$ goes to infinity.
  arXiv  Detail & Related papers  (2021-04-26T15:03:08Z)
• Perelman's Ricci Flow in Topological Quantum Gravity [62.997667081978825]
  In our quantum gravity, Perelman's $tau$ turns out to play the role of a dilaton for anisotropic scale transformations. We show how Perelman's $cal F$ and $cal W$ entropy functionals are related to our superpotential.
  arXiv  Detail & Related papers  (2020-11-24T06:29:35Z)
• The Geometry of Time in Topological Quantum Gravity of the Ricci Flow [62.997667081978825]
  We continue the study of nonrelativistic quantum gravity associated with a family of Ricci flow equations. This topological gravity is of the cohomological type, and it exhibits an $cal N=2$ extended BRST symmetry. We demonstrate a standard one-step BRST gauge-fixing of a theory whose fields are $g_ij$, $ni$ and $n$, and whose gauge symmetries consist of (i) the topological deformations of $g_ij$, and (ii) the ultralocal nonrelativistic limit of space
  arXiv  Detail & Related papers  (2020-11-12T06:57:10Z)
• Zitterbewegung and Klein-tunneling phenomena for transient quantum waves [77.34726150561087]
  We show that the Zitterbewegung effect manifests itself as a series of quantum beats of the particle density in the long-time limit. We also find a time-domain where the particle density of the point source is governed by the propagation of a main wavefront. The relative positions of these wavefronts are used to investigate the time-delay of quantum waves in the Klein-tunneling regime.
  arXiv  Detail & Related papers  (2020-03-09T21:27:02Z)
• Existence of Schrodinger Evolution with Absorbing Boundary Condition [0.0]
  Consider a non-relativistic quantum particle with wave function inside a region $Omegasubset mathbbR3$. The question how to compute the probability distribution of the time at which the detector surface registers the particle boils down to finding a reasonable mathematical definition of an ideal detecting surface. A particularly convincing definition, called the absorbing boundary rule, involves a time evolution for the particle's wave function $psi$ expressed by a Schrodinger equation in $Omega$ together with an "absorbing" boundary condition on $partial Omega$ first considered by Werner in
  arXiv  Detail & Related papers  (2019-12-27T10:53:31Z)

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.