New quantum dialogue protocol based on continuous-variable two-mode squeezed vacuum states

Zhou, Nanrun; Li, Jianfu; Yu, Zhen-Bo; Gong, Li-Hua; Farouk, Ahmed

doi:10.1007/s11128-016-1461-2

Cited by 84 publications

(21 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We found that access to small quantum memory (a qubit) does not help the eavesdropper to attack the SDIQKD protocol and conjecture that the same holds for other protocols and unlimited memory. As QKD in general is gaining immense popularity [25,26,27,28] and entanglement based QKD remains commercially nonviable, devices employing prepare and measure QKD schemes seems to be η critical avg (a) (b) (2 → 1) QRAC 0.71 1 2 (3 → 1) QRAC 0.58 1 3 natural way forward. Our analysis other than being robust, deals with worst case scenarios and provides for the everyday naive user a hassle-free way to infer about the security his devices offer.…”

Section: Discussionmentioning

confidence: 99%

On the security of semi-device-independent QKD protocols

Chaturvedi

Ray

Veynar

et al. 2018

Quantum Inf Process

View full text Add to dashboard Cite

While fully device-independent security in (BB84-like) prepare-and-measure quantum key distribution (QKD) is impossible, it can be guaranteed against individual attacks in a semi-device-independent (SDI) scenario, wherein no assumptions are made on the characteristics of the hardware used except for an upper bound on the dimension of the communicated system. Studying security under such minimal assumptions is especially relevant in the context of the recent quantum hacking attacks wherein the eavesdroppers can not only construct the devices used by the communicating parties but are also able to remotely alter their behavior. In this work, we study the security of a SDIQKD protocol based on the prepare-and-measure quantum implementation of a well-known cryptographic primitive, the random access code (RAC). We consider imperfect detectors and establish the critical values of the security parameters (the observed success probability of the RAC and the detection efficiency) required for guaranteeing security against eavesdroppers with and without quantum memory. Furthermore, we suggest a minimal characterization of the preparation device in order to lower the requirements for establishing a secure key.

show abstract

Section: Discussionmentioning

confidence: 99%

On the security of semi-device-independent QKD protocols

Chaturvedi

Ray

Veynar

et al. 2018

Quantum Inf Process

View full text Add to dashboard Cite

show abstract

“…36 is a one-and two-mode combined squeezed vacuum state. The one-mode squeezing corresponds to quadratic operators in the exponent such asb 2 2 , and the two-mode squeezing to the products of different operators such asb 1b2 .Being generalizations of the generic squeezed vacuum, the optical output states can be used for the implementations of quantum teleportation [26], quantum metrology [30], quantum dense coding [32], quantum dialogues [33] and electromagnetically induced transparency protocols [38]. Squeezed vacuum states have non-vanishing intensities, and since a beam splitter under CPA conditions emits squeezed vacuum states of light, coherent perfect absorption of intensity is not possible, and A I sq < 1 for non-vanishing squeezing.…”

Section: Continuous-variable Quantum State Preparation With Cpamentioning

confidence: 99%

Quantum coherent absorption of squeezed light

Hardal

Wubs

2019

Optica

View full text Add to dashboard Cite

We investigate coherent perfect absorption (CPA) in quantum optics, in particular when pairs of squeezed coherent states of light are superposed on an absorbing beam splitter. First, by employing quantum optical input-output relations, we derive the absorption coefficients for quantum coherence and for intensity, and reveal how these will differ for squeezed states. Secondly, we present the remarkable properties of a CPA-gate: two identical but otherwise arbitrary incoming squeezed coherent states can be completely stripped off their coherence, producing a pure entangled squeezed vacuum state that with its finite intensity escapes from an otherwise perfect absorber. Importantly, this output state of light is not entangled with the absorbing beam splitter by which it was produced. Its loss-enabled functionality makes the CPA gate an interesting new tool for continuous-variable quantum state preparation.

show abstract

“…Internet of Things (IoT) facilitates data getting and sending for all sensors/devices through the transmission network [39][40][41][42][43][44][45][46][47]. The cloud part of the IoT result facilitates data preprocessing and filtering previous to affecting it to the cloud and broadcasts control instructions from the cloud to objects [48][49][50][51][52][53].…”

Section: Introductionmentioning

confidence: 99%

Cloud based IoT Smart Healthcare System for Remote Patient Monitoring

Lakshmi¹,

Ghonge²

2021

EAI Endorsed Trans Perv Health Tech

View full text Add to dashboard Cite

INTRODUCTION: Covid-19 has exposed the necessitate for the rapid acceptance of increasingly pioneering digital health technologies, especially remote health monitoring. The digital revolution in Healthcare is dynamic ease of use of inexpensive concern solutions, enhancing patient care, reducing complications, improving effectiveness, and authorizing healthcare decision-makers with intelligence insight at the point of care. OBJECTIVES: The primary objective of this work is to depict the need to recognize wearable sensors as a prerequisite for supporting paradigms in monitoring patients in real-time and enabling access information from the cloud. METHODS: Internet of Things (IoT) is the association of substantial objects where information and communication tools connect various embedded devices to the internet for gathering and switching over data. The combinations of embedded devices with cloud servers recommend extensive pertinence of IoT to several areas of human life. This paper has proposed a method through cloud-based IoT healthcare sensors to formulate patient monitoring remotely. In combination with the implementation of various inbuilt capabilities, internet-enabled heterogeneous wearable sensors can be used for the collection of biomedical data to transmit patient data directly to cloud severe systems to monitor health remotely. RESULTS: Smart healthcare monitoring includes channels of communication, embedded internal and external sensors, IoT server, and cloud storage. The health parameters activities are done at various levels of refining named application layer, management layer, network layer and layer of device. Different data sensors have been collected by wireless media from nodes. It is saved as an unstructured dataset in the cloud. For security with username and password, a patient database is created. Authorized individuals have access to the cloud in order to monitor cloud sensor data in data log, analogue log, digital input and digital output. CONCLUSION: Patient physical parameters like heart beat respiration ,high temperature and stress are calculated via sensors and can be progressed by WIFI unit in the cloud. From this healthcare practitioner will analyze medical to have effective medication. For face-to-face consultation between doctors and patients, the video feature can be added in the future work.

show abstract

New quantum dialogue protocol based on continuous-variable two-mode squeezed vacuum states

Cited by 84 publications

References 31 publications

On the security of semi-device-independent QKD protocols

On the security of semi-device-independent QKD protocols

Quantum coherent absorption of squeezed light

Cloud based IoT Smart Healthcare System for Remote Patient Monitoring

Contact Info

Product

Resources

About