Windows 10: JBL quantum 200

WannesParijs · Jun 20, 2021

Hello, I have a question why can't the JBL quantumEngine find my JBL quantum 200?Is there a reason for this? And how should I solve this problem?Please help me

:)

Brink · Jun 20, 2021

Microsoft Quantum proves shallow quantum circuits provide advantage

We know that Shor’s algorithm can factor integers on a quantum computer exponentially faster than any known classical algorithm, and that there are problems, such as the simulation of physical systems as posed by Richard Feynman in the 1980s, that quantum computers can solve that would take classical computers more than the lifetime of the universe to calculate.

But can we prove that a quantum computer can solve a problem exponentially faster than a classical computer?

In 2018, work by Sergey Bravyi (IBM Research), David Gosset (University of Waterloo), and Robert Koenig (Technische Universität München) described a problem that could be solved by a shallow quantum circuit but provably could not be solved by a shallow classical bounded circuit. (More on shallow bounded and unbounded circuits below.)

The primary question left open in their work was: Can shallow quantum circuits solve a problem that even a shallow classical unbounded circuit could not?

The answer is yes.

Robin Kothari, a Senior Researcher at Microsoft Quantum, Luke Schaeffer (University of Waterloo and former intern at Microsoft Quantum), and collaborators Adam Bene Watts (MIT) and Avishay Tal (UC Berkeley) recently showed that: shallow quantum circuits can solve problems that cannot be solved by shallow classical unbounded circuits, unless they use exponentially many gates.

These breakthrough results were presented by Luke Schaeffer at the Annual Conference on Quantum Information Processing (QIP), the largest quantum computing conference in the world, and at the Annual ACM SIGACT Symposium on Theory of Computing (STOC). Their findings are outlined here.

Motivated by the constraints of near-term quantum computing hardware, we compared the power of today’s depth-restricted quantum computers with depth-restricted classical computers.

Using today’s quantum computing hardware, we can study the power of quantum computers that run “shallow” quantum algorithms, whose run time is very small compared to the size of the problem being solved.

But first, some quantum basics.

An idealized quantum computer consists of some number of quantum bits, or “qubits.” There is a small set of quantum operations called quantum gates that act on two qubits at a time and can be applied to any pair of qubits. In a single time step, we allow these gates to be applied to pairs of qubits that do not overlap. For example, in one time step we can apply a quantum gate to qubits 1 and 2, and apply a potentially different quantum gate to qubits 3 and 4, and yet another quantum gate to qubits 5 and 6.

A quantum circuit is a sequence of quantum gates.

The depth of a quantum circuit is the number of time steps required to implement a quantum circuit.

Shallow quantum circuits are quantum circuits whose depth is fixed and does not increase with the size of the problem being solved.

The reality of near-term quantum computers is that they have a high error rate and can only tolerate a few time steps of quantum operations before noise overwhelms the signal in the circuit, so on the quantum hardware we currently run, we are motivated to run problems that use shallow quantum circuits.

We use a problem inspired by the work of David Mermin in 1990 on quantum pseudo-telepathy.*

Computer scientists have studied several classes of shallow classical circuits, the most well-known of which are called NC0 and AC0. We will call these circuits “shallow bounded circuits” and “shallow unbounded circuits,” respectively.

NC0 – shallow bounded circuits – are shallow classical circuits where:

The allowed gates are the logical AND and OR gates on 2 bits, and the NOT gate.

The AND gate takes in two input bits and outputs 1, if and only if both inputs are 1.

The OR gate takes in two input bits outputs 1, if and only if at least one input bit is 1.

The NOT gate negates the input bit.

Note that these shallow bounded circuits are known to be quite weak and their limitations are well understood. For example, these circuits cannot solve the simple problem of deciding if all input bits are equal to 0.

AC0 – shallow unbounded circuits – are similar, except that:

The AND and OR gates can accept an unbounded or unlimited number of inputs.

An AND gate with many inputs outputs 1, if and only if all inputs equal 1.

An OR gate with many inputs outputs 1, if and only if at least one of the inputs is 1.

Shallow unbounded circuits are much more powerful than shallow bounded circuits and as a standard and well-studied model, remain an active area of research.

With this discovery, we hope that new doors open, inspiring others to find solutions to real-world problems with quantum computing.

.

Learn more about quantum computing

Start solving quantum problems; download the Microsoft Quantum Development Kit

* In 1990, David Mermin described a problem that could be solved by a group of quantum computers located far from each other that could not be explained by classical physics. It was as if the quantum computers used telepathy, which gave rise to the term “quantum pseudo-telepathy.” However, shallow quantum circuits cannot solve Mermin’s problem because the solution requires a quantum state known as the cat state (named after Schrödinger’s cat), which shallow quantum circuits cannot create. Instead, the problem used in this result swaps out the cat state and replaces it with a “poor man’s cat state” which can be created by shallow quantum circuits. The resulting problem can be solved by shallow quantum circuits but cannot even be solved by shallow classical unbounded circuits, as the authors show.
Click to expand...

Source: https://cloudblogs.microsoft.com/qua...ial-advantage/

Cristian_25H · Jun 20, 2021

HARMAN Announces the JBL Synchros Headphone Lineup

HARMAN International Industries, Incorporated, is proud to announce a complete lineup of new JBL headphones for the consumer. The new JBL Synchros in-ear, on-ear, and over-ear headphones bring world-renowned JBL professional audio sound to headphones. Packaged in a precision design, with authentic materials, this line has a model for everyone.

Groundbreaking research performed by Harman engineers has revealed insights into consumer preference for headphone sound, which has been the foundation for the acoustic design of this new headphone line. JBL engineers used this proprietary insight and decades of audio engineering expertise to develop a line of headphones that deliver a balanced audio experience with amazing clarity and deep, powerful, bass.

"Many manufacturers advertise headphone sound based on a popular artist's recording expertise, but few truly understand consumer preference for headphone sound the way HARMAN does", said Michael Mauser, President of HARMAN Lifestyle. "To achieve the audio profile we know consumers want, we went to the time tested performance of JBL professional audio speakers, the same ones used in the top clubs and concert venues around the world. Our engineers scientifically modeled the sound of these industry leading speakers and applied it to headphones, bringing the award winning JBL pro sound to consumers for the first time."

In the JBL Synchros headphone lineup, JBL debuts its patent pending JBL LiveStage signal processing technology. JBL LiveStage adds localization cues to deliver a more lifelike listening experience, recreating the warm natural feeling of being "in the room" within the headphones. The result is a headphone listening experience similar to that of listening to music from a stage in front of you. JBL LiveStage gives the listener a greater sense of spatial presence and separation, with individual instruments and voices sounding richer and clearer. JBL Synchros headphones with JBL LiveStage bring the music to life in a way that consumers have never experienced before.

JBL Synchros S700 premium powered over-ear stereo headphones are the flagship model of the line. The JBL Synchros S700 headphones are built for those who know the future when they see it: precision crafted from lightweight die cast aluminum, woven fabric, steel, and luxuriously appointed leather ear cushions. With JBL professional audio performance and JBL LiveStage signal processing technology, these headphones deliver an unparalleled lifelike listening experience. Nothing else looks, feels, or sounds this new.

Precision designed die-cast aluminum frame, with woven Cordura accents, steel headband and soft leather ear cushions

JBL professional audio sound with JBL PureBass performance in passive or powered mode

Premium 50 mm drivers

Patent pending JBL LiveStage signal processing technology for a more realistic sound experience

Built-in, rechargeable Li-ion battery powers JBL LiveStage technology for 28 hours

Detachable cable design with iOS 3 button remote/microphone cable and universal 3 button remote/microphone cable included

Available in Onyx and Glacier, with carrying case

JBL Synchros S500 powered over-ear stereo headphones are precision-made, lightweight and durable. Combining JBL Professional sound and JBL LiveStage signal processing technology, the headphone brings you all the energy and realism of a live performance.

JBL professional audio sound with PureBass performance in passive or powered mode

Lightweight steel headband and leather ear cushions

Premium 50 mm drivers

Patent pending JBL LiveStage signal processing technology for a more realistic sound experience

2 AAA batteries deliver 20 hours of JBL LiveStage performance

Detachable cable design with iOS 3 button remote/microphone cable and universal 3 button remote/microphone cable included

Available in Onyx and Glacier, with carrying case

JBL Synchros S300 premium on-ear stereo headphones are designed to revolutionize your portable listening. Making a clean break from conventional headphone design these lightweight yet durable headphones, with a steel headband and leather ear cushions are comfortable enough for hours and hours of listening. With JBL professional audio performance the JBL Synchros S300 reproduces your music with amazing clarity and deep, powerful bass. The design highlights portability, with cups that rotate and fold for compact storage. JBL Synchros S300 brings you flexibility, style, and power all in one piece.

JBL professional audio sound with JBL PureBass performance

Premium 40 mm drivers

Detachable cable design with iOS 3 button remote/microphone cable or universal 3 button remote/microphone cable included

Cutting-edge design with steel headband and soft leather ear cushions

Collapsible design for storage, with carry case

Available in 6 colors

JBL Synchros S200 premium in-ear stereo headphones are ultra-light yet powerful. Precision-designed, die-cast aluminum earpieces with metal accents ensure these headphones stand out from the flock. Angled ear tips provide comfortable stable fit for hours of listening enjoyment and powerful 10 mm drivers deliver JBL Professional Audio grade performance, with amazing clarity and resonant bass.

Ultra-light, die-cast aluminum construction

Premium 10 mm driver

JBL professional audio sound with JBL PureBass performance

Angled ear tips for improved comfort and stability

Tangle resistant flat cable

1 set of Comply foam tips for superior fit

3 sizes of silicone ear tips (S/M/L)

Available in 2 colors and 3 configurations: Onyx and Glacier, with either Apple 3-button remote cable, universal 3-button remote cable or straight cable

JBL Synchros S100 advanced in-ear stereo headphones delivers striking sound in a contemporary design. With JBL professional audio performance the JBL Synchros S100 reproduces your music with amazing clarity and deep, powerful bass. Angled earpieces, and a variety of ear tip sizes, ensure a comfortable, stable fit. Die-cast aluminum earpieces with metal accents, these headphones complement any style.

Ultra-light, die-cast aluminum construction

Advanced 9 mm driver

JBL professional audio sound with JBL PureBass performance

Angled ear tips for improved comfort and stability

Tangle resistant flat cable

1 set of Comply foam tips for superior fit

3 sizes of silicone ear tips (S/M/L)

Available in 2 colors and 3 configurations: Onyx and Glacier, with either Apple 3-button remote cable, universal 3-button remote cable, or straight cable

Pricing and availability
For additional information on the JBL Synchros S700 (MSRP $349.95), S500 (MSRP $299.95), S300 (MSRP $199.95), S200 (MSRP $129.95) and S100 (MSRP $99.95), or to purchase, visit www.jbl.com.

3William · Jun 20, 2021

Unable to connect and access JBL Flip 3 device on Windows 10

I have the same problem.

I had windows 7 and a new JBL Flip3. It was working. This weekend I upgrade to Windows 10 and the JBL stopped working. I have been working all weekend with Microsoft premium support and we have not fixed it yet. Like others the JBL is "paired" but
not connected. There is no "button" we can push to connect. So when we right click on the speaker Icon and select "playback devices" the JBL is not listed. As it is not listed, it can't be selected as the default.

Not only myself but Microsoft Premium support have tried all the steps listed here. We have even done a reset. Updated all the drivers. Still not fixed.

Can this be escalated please?

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