Supernatural MSSM

Du, Guangle; Nanopoulos, Dimitri V.; Raza, Shabbar; Li, Tianjun

doi:10.1103/physrevd.92.025038

Cited by 20 publications

(21 citation statements)

References 148 publications

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“…This system can also be used to engineer single photon wavepackets by heralding one photon conditioned on a trigger off of the other. The heralded photon will fall into a pure state if the triggering resolution is much finer than the bi-photon coherence time [34], a condition met by our detection system. We envision that such linear modifications to nonlinear interactions will lead to generation of quantum states of light with exotic coherence properties and benefit applications in continuous variable timefrequency domain quantum information and computing by engineering [35] entanglement of bi-photon and multipartite states.…”

Section: Discussionmentioning

confidence: 99%

Temporally Asymmetric Biphoton States in Cavity-Enhanced Optical Parametric Processes

Javid¹,

Rogers²,

Graf³

et al. 2019

Phys. Rev. Applied

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Generation and control of quantum states of light on an integrated platform has become an essential tool for scalable quantum technologies. Chip scale sources such as nonlinear optical microcavities have been demonstrated to efficiently generate entangled bi-photon states. However these systems have little control over the continuous variable time-energy entanglement of the photons. We demonstrate such control by preparing bi-photon states with asymmetric temporal wavefunctions by selectively modifying the density of states of the cavity modes taking part in the interaction using Rayleigh scattering-induced strong coupling of optical modes of a resonator. These states reveal exotic coherence properties and show a path forward for continuous variable quantum state engineering on a chip.

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Section: Discussionmentioning

confidence: 99%

Temporally Asymmetric Biphoton States in Cavity-Enhanced Optical Parametric Processes

Javid¹,

Rogers²,

Graf³

et al. 2019

Phys. Rev. Applied

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“…[81], and we want to remark it here. Possible exceptions to the above conclusion could be given by models with a high degree of correlations among the high energy parameters, such as in 'supernatural' SUSY scenarios in the context of no-scale supergravity [82][83][84][85], or by models with non-minimal Higgs sectors, e.g. resembling N=2 SUSY [86].…”

Section: Summary and Discussionmentioning

confidence: 99%

Low fine-tuning in Yukawa-deflected gauge mediation

Ahmed

Mustafayev

et al. 2017

Phys. Rev. D

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We discuss a class of models with gauge-mediated supersymmetry breaking characterized by a non-unified messenger sector inducing non-standard gaugino mass ratios, as well as by additional contributions to the soft mass terms from a matter-messenger coupling. The well-known effect of this coupling is to generate A-terms at one-loop level, hence raising the Higgs mass without relying on super-heavy stops. At the same time, a hierarchy between Wino and gluino masses, as induced by the non-unified messenger fields, can greatly lower the radiative corrections to the Higgs soft mass term driven by the high-energy parameters, thus reducing the fine tuning. We search for models with low fine tuning within this scenario, and we discuss the spectrum, collider phenomenology, constraints, and prospects of the found solutions. We find that some setups are accessible or already excluded by searches at the Large Hadron Collider, and all our scenarios with a tuning better than about 2% can be tested at the International Linear Collider.

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“…For example, see Table 1 in Ref. [55]. This explains the (so far) non-detection of supersymmetry at the LHC.…”

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confidence: 99%

“…From the LHC supersymmetry search constraints, it is well known that there exists a supersymmetric electroweak fine-tuning problem in the SSMs. With the GiudiceMasiero mechanism [50], we have shown that the fine-tuning measure defined by Ellis, Enqvist, Nanopoulos, and Zwirner (EENZ) [51] as well as Barbieri and Giudice (BG) [52] is automatically at the order one for the no-scale supergravity and M-theory supergravity, and then the supersymmetric electroweak fine-tuning problem is solved naturally [53][54][55][56]. This is called super-natural supersymmetry.…”

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confidence: 99%

No-scale $$\mu $$ μ -term hybrid inflation

2017

Eur. Phys. J. C

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To solve the fine-tuning problem in μ-term hybrid inflation, we will realize the supersymmetry scenario with the TeV-scale supersymmetric particles and intermediate-scale gravitino from anomaly mediation, which can be consistent with the WMAP and Planck experiments. Moreover, we for the first time propose the μ-term hybrid inflation in no-scale supergravity. With four scenarios for theshow that the correct scalar spectral index n s can be obtained, while the tensor-to-scalar ratio r is predicted to be tiny, about 10 −10 -10 −8 . Also, the SU (2) R ×U (1) B−L symmetry breaking scale is around 10 14 GeV, and all the supersymmetric particles except gravitino are around the TeV scale, while the gravitino mass is around 10 9 -10 10 GeV. Considering the complete potential terms linear in S, we for the first time show that the tadpole term, which is the key for such kind of inflationary models to be consistent with the observed scalar spectral index, vanishes after inflation. Thus, to obtain the μ term, we need to generate the supersymmetry breaking soft term A S κ κ S due to A S κ = 0 in no-scale supergravity, where and are vector-like Higgs fields at high energy. We show that the proper A S κ κ S term can be obtained in the M-theory inspired no-scale supergravity. We also point out that A S κ around 700 GeV can be generated via the renormalization group equation running from string scale. We briefly comment on the supersymmetry phenomenological consequences as well.It is well known that our Universe may experience an accelerated expansion, i.e., inflation [1][2][3][4], at a very early stage of evolution, as suggested by the observed temperature fluctuations in the cosmic microwave background radiation (CMB). From the particle physics point of view, supersyma e-mail: wulina@std.uestc.edu.cn b e-mail: hushan@itp.ac.cn c e-mail: tli@itp.ac.cn metry is the most promising extension for the Standard Model (SM). In particular, the scalar masses can be stabilized, and the superpotential is non-renormalized. Because gravity is also very important in the early Universe, it seems to us that supergravity theory is a natural framework for the inflationary model building [5,6].The F-term hybrid inflation in a supersymmetric high energy model with gauge symmetry G has a renormalizable superpotential W and a canonical Kähler potential K [7,8]. In particular, the Z 2 R-parity in the supersymmetric SMs (SSMs) is extended to a continuous U (1) R symmetry, which determines superpotential. With the minimal W and K , the gauge symmetry G is broken down to a subgroup H at the end of inflation. For the supersymmetric high energy model, in general, we can consider either a left-right model with gauge symmetry [9,10]. H can be the SM or SM-like gauge group, etc.In the supersymmetric hybrid inflation [7], 1 the quantum corrections arising from supersymmetry breaking drive inflation, and the scalar spectral index was predicted to be n s = 1 − 1/N 0.98, where N = 60 denotes the number of e-foldings necessary to resolve the horizon and f...

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Supernatural MSSM

Cited by 20 publications

References 148 publications

Temporally Asymmetric Biphoton States in Cavity-Enhanced Optical Parametric Processes

Temporally Asymmetric Biphoton States in Cavity-Enhanced Optical Parametric Processes

Low fine-tuning in Yukawa-deflected gauge mediation

No-scale $$\mu $$ μ -term hybrid inflation

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