Detection of gravitational waves —An application of relativistic quantum information theory

Yeo, Ye; Lim, Zhi Han; Ching, Chee Leong; Chong, Jacky J.; Chua, Wee Kang; Dewanto, A.

doi:10.1209/0295-5075/78/20006

Cited by 3 publications

(3 citation statements)

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“…The model we present here is one that tries to understand quantum entanglement behavior, which can be a better alternative to experiment or to verify the effects of the NC space on quantum entanglement, as was done in studies [ 39 , 40 ] the effects of the passing gravitational wave on the quantum states of a system of N spin-1/2 particles have been investigated by Ye Yeo et al…”

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confidence: 99%

Spin quantum entanglement in non-commutative curved space–time

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Spin quantum entanglement in non-commutative curved space–time

et al. 2022

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“…In this letter, using the "dressing" formalism, we build physical charged qubits from dressed fields which have the correct asymptotic behavior, are gauge invariant, their propagators have a particle pole structure and are free from infrared divergences. Finally, we discuss the impact of the soft corrections on the entanglement measures.Relativistic quantum information is quite a novel area of research whose scope covers from the effect of Lorentz transformations on entanglement measures to the information content of black holes [1,2,3,4,5,6,7,8,9,10,11,12,13]. Included among its main tasks should be the suitable treatment of the divergencies that plague quantum field theories.…”

mentioning

confidence: 99%

“…Relativistic quantum information is quite a novel area of research whose scope covers from the effect of Lorentz transformations on entanglement measures to the information content of black holes [1,2,3,4,5,6,7,8,9,10,11,12,13]. Included among its main tasks should be the suitable treatment of the divergencies that plague quantum field theories.…”

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confidence: 99%

Physical qubits from charged particles: Infrared divergences in quantum information

León

Martín-Martínez

2009

Phys. Rev. A

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We consider soft-photon effects ͑ir structure of QED͒ on the construction of physical qubits. Soft photons appear when we build charged qubits from the asymptotic states of QED. This construction is necessary in order to include the effect of soft photons on entanglement measures. The nonexistence of free charged particles ͑due to the long range of QED interactions͒ leads us to question the sense of the very concept of free charged qubit. In this work, using the "dressing" formalism, we build physical charged qubits from dressed fields which have the correct asymptotic behavior, are gauge invariant, have propagators with a particle pole structure, and are free from infrared divergences. Finally, we discuss the impact of the soft corrections on the entanglement measures. Relativistic quantum information is quite a novel area of research whose scope covers the effect of Lorentz transformations on entanglement measures to the information content of black holes ͓1-13͔. Included among its main tasks should be the suitable treatment of the divergences that plague quantum field theories. In this work we address the infrared problem in the construction of charged qubits.The infrared divergences of QED are intimately connected to the fact that the very concept of free charged particle is alien to the theory ͓14-16͔. Since the asymptotic limit of the QED Hamiltonian is not the free one, residual Coulomb-type interactions remain for t → ϱ. So, the electromagnetic ͑EM͒ interactions of charged particles never switch off and, as a consequence, they are always surrounded by a soft-photon cloud whose inescapable presence has been argued in quantum information against the conception of free charged qubits. It has been used to say that the physical realization of a single charged qubit is itself an idealization ͓3͔ and that it should be upgraded with all the multi-softphoton components.We will show below that if we try to build the charged qubits taking into account the asymptotic interaction, another problem will come up: the states that evolve with the asymptotic Hamiltonian are not gauge invariant and, hence, they cannot be conceived as a physical entity. In addition, for these states we no longer obtain a polelike contribution in the energy spectrum of the charged particles associated with their masses ͓17͔.Seemingly, all these arguments indicate that we cannot speak about physical charged qubits in QED. However, there is a method of recovering physical states from asymptotic QED: it is the dressing formalism ͓16͔, which we will use to build physical charged qubits overcoming all the above problems.The dressing formalism restores the gauge invariance of the asymptotic states, preserving their dynamics. The dressed fields, which are surrounded by soft-photon clouds, turn to be asymptotically well behaved, their propagators having a proper pole structure, and-crucial for our purposes-the S-matrix elements constructed in terms of dressed fields are ir finite ͓18͔. In this work we build dressed two qubits states that are physical...

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Relic High Frequency Gravitational waves from the Big Bang and How to Detect Them

Beckwith

2009

AIP Conference Proceedings

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This paper shows how entropy generation from numerical density calculations of relic gravitons can be measured via the Li-Baker high-frequency gravity wave (HFGW) detector, and suggests the implications this has for the physics of early-universe phase transitions. This paper indicates the role of Ng's revised statistics in gravitational wave physics detection and the application of Baumann et al. (2007) formalism of reduction of rank-two tensorial contributions to density wave physics, using the HFGW approximation directly at the beginning as well as Li's treatment of energy density explicitly. This formalism is a way to refine and add more capacity to the Li-Baker HFGW detector in reconstructing early-universe conditions at the onset of the big bang. Furthermore, we bring up how the HFGW detector can have its data sets compared and swapped with ice cube relic neutrino physics data taken at the south pole. This will enable us to begin to get criteria to falsify different inflation models as alluded to at the end of this manuscript. PACS: 98.80.Bp, 95.55.Ym, 26.35.+c 2 The Li-Baker detector uses a static magnetic field that varies under the impact of HFGWs for background detection of gravitational waves, and a fractal membrane to detect HFGW electromagnetic signatures. Researchers can use these signatures to confirm the existence of HFGWs by assuming that spin entropy density in the Li-Baker detector affects magnetic field spin and magnetism, per Rothman and Boughn (2006). Measurement of gravitons and gravitational waves is a way to establish an association between relic gravitational waves, gravitons, and entropy. This is a follow-up to a suggestion made by Yeo, et al. (2006) for how variation of spin entropy in a detector could dramatically enhance the sensitivity of existing HFGW detectors.The benefit of examining spin entropy density is in showing the existence of gravitons as a physically measurable datum in General Relativity, as well as the interrelationship of gravitons with HFGW from experimental data sets. Rothman and Boughn (2006) have written that the present set of existing detector systems with pre-Li-Baker detector technology is insufficient to accomplish meaningful detection of gravitons, suggesting that the Li-Baker detector may overcome the limits described by Rothman and Boughn: that with conventional detectors, one would need a detector mass about the size of Jupiter to detect a single graviton.Finally,we can compare how this re formulation may allow for data set swapping of information between the HFGW graviton production data and ice cube, which may improve our understanding of CMBR issues. REVIEWING JACK NG'S ARGUMENTS: HOW ENTROPY IS PROPORTIONAL TO A NUMERICAL DENSITY VALUEThe fact that in both the dark matter and in the relic graviton production cases, entropy has similar quantum Boltzmann statistics will be the starting point for a derivation of the production of relic gravitons, linked to falsifiable experimental measurements. Ng (2007) used the following approximation for temperatur...

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Detection of gravitational waves —An application of relativistic quantum information theory

Cited by 3 publications

References 32 publications

Spin quantum entanglement in non-commutative curved space–time

Spin quantum entanglement in non-commutative curved space–time

Physical qubits from charged particles: Infrared divergences in quantum information

Relic High Frequency Gravitational waves from the Big Bang and How to Detect Them

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