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        <p>ARTIQ (Advanced Real-Time Infrastructure for Quantum physics) is a next-generation control system for quantum information experiments. It is being developed in partnership with the <a href="http://www.nist.gov/pml/div688/grp10/index.cfm">Ion Storage Group</a> at NIST, and its applicability reaches beyond ion trapping.</p>

        <p>Modern research on quantum information systems poses particular challenges to the control system:
            <ul>
                <li>dozens of signals need to be received and generated with extremely precise timing, in particular to ensure phase coherence</li>
                <li>quantum error correction schemes require very low reaction latency in response to a measurement</li>
                <li>real-world implementations of quantum gates, and a fortiori quantum algorithms, involve structurally complex protocols</li>
                <li>ever-improving experimental techniques drive the need for a flexible and programmable system</li>
                <li>the diversity of equipment, device drivers and data analysis software involved in a single experiment results in a distributed and multi-platform environment</li>
            </ul>
        </p>

        <p><center><img src="lab_hardware.png"></center></p>

        <h2>Enter ARTIQ</h2>

        <p>ARTIQ features a high-level programming language, based on Python, that helps describing complex experiments. It is compiled and executed on dedicated FPGA hardware with nanosecond timing resolution and sub-microsecond latency.</p>

        <p>The time-critical code (a <i>kernel</i>) running on the FPGA (the <i>core device</i>) is easily interfaced with Python code on the computer using a remote procedure call (RPC) mechanism.</p>

        <p>The FPGA design is highly portable so that it can adapt to different laboratory setups and resist hardware obsolescence.</p>

        <p>ARTIQ drivers for non-realtime devices can be run on remote machines with different operating systems.</p>

        <p>The project also includes a graphical user interface, an experiment scheduling system, and databases for experiments, devices, parameters and results.</p>

        <p>Technologies employed include <a href="http://python.org">Python</a>, <a href="../gateware.html">Migen</a>, <a href="../gateware.html">MiSoC</a>/<a href="https://github.com/openrisc/mor1kx">mor1kx</a>, <a href="http://llvm.org">LLVM</a> and <a href="https://github.com/numba/llvmlite">llvmlite</a>.</p>

        <p><center><img src="comp.png"></center></p>

        <h2>Open source</h2>

        <p>Another goal of ARTIQ is to streamline and simplify the design flow of quantum physics instrumentation by promoting design reuse through the development of platform-independent, open-source hardware and software.</p>

        <p>Our aim is to provide a control system suitable for the challenges of modern quantum information research, which is based on modular, parameterized and open components that allow physicists to rapidly design and deploy new experiments.</p>

        <h2>A taste of the programming language</h2>
        <h4>Timing language basics</h4>
<pre>
trigger.sync()               # wait for trigger input
start = now()                # capture trigger time
for i in range(3):
    delay(5*us)
    dds.pulse(900*MHz, 7*us) # first pulse 5 µs after trigger
at(start + 1*ms)             # re-reference time-line
dds.pulse(200*MHz, 11*us)    # exactly 1 ms after trigger
</pre>
        <p>
        <ul>
        <li>now(), at(), delay() describe time-line of an experiment</li>
        <li>Exact time is kept in an internal variable</li>
        <li>That variable only loosely tracks the execution time of CPU instructions</li>
        <li>The value of that variable is exchanged with the real-time input/output (RTIO) core that does precise timing</li>
        </ul>
        </p>
        <h4>Parallelism</h4>
<pre>
with sequential:
    with parallel:
        a.pulse(100*MHz, 10*us)
        b.pulse(200*MHz, 20*us)
    with parallel:
        c.pulse(300*MHz, 30*us)
        d.pulse(400*MHz, 20*us)
</pre>
        <ul>
        <li>Experiments are inherently parallel: simultaneous laser pulses, parallel cooling of ions in different trap zones</li>
        <li>parallel and sequential contexts with arbitrary nesting</li>
        <li>a and b pulses both start at the same time</li>
        <li>c and d pulses both start when a and b are both done (after 20 µs)</li>
        <li>Currently implemented by inlining, loop-unrolling, and interleaving (i.e. static scheduling at compile time)</li>
        </ul>
        <h4>Organize experiment components and reuse code</h4>
<pre>
class Experiment(AutoDB):
    def build(self):
        self.ion1 = Ion(...)
        self.ion2 = Ion(...)
        self.transporter = Transporter(...)

    @kernel
    def run(self):
        with parallel:
            self.ion1.cool(duration=10*us)
            self.ion2.cool(frequency=...)
        self.transporter.move(speed=...)
        delay(100*ms)
        self.ion1.detect(duration=...)
</pre>

        <h2>Is ARTIQ right for my lab?</h2>
        <div style="float: right;"><img src="logo_small.png"></div>
        <p>If you don't mind <a href="manual/installing.html">getting your hands dirty</a> (i.e. compiling software and FPGA bitstreams), it's easy to find out by yourself! The core device is based on the resource-efficient MiSoC system-on-chip design, and you can use a limited version of ARTIQ with the small and low-cost <a href="http://papilio.cc/">Papilio Pro</a> board. Feel free to send feedback to the mailing list!</p>

        <p>Note that ARTIQ is still in development and we expect to deploy a fully functional release (that will include a GUI) at NIST by June 2015. We are also working on making the installation procedure easier.</p>

        <h2>Resources</h2>
        <p>
        <ul>
            <li><a href="https://github.com/m-labs/artiq">Source code repository</a></li>
            <li><a href="https://ssl.serverraum.org/lists/listinfo/artiq">Public mailing list</a></li>
            <li><a href="slides_taaccs.pdf">Slide-show</a></li>
            <li><a href="manual/">Manual</a> (work in progress)</a>
            <li>Commercial support available - contact sb at m-labs.hk</li>
            <li>Press release: <a href="http://nist.gov/pml/div688/grp10/open-source-software-for-quantum-information.cfm">Open-Source Software for Quantum Information</a></li>
        </ul></p>
    </div>
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add ARTIQ page 2015-01-16 19:23:15 +08:00			`<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"`
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update ARTIQ web page title 2015-01-31 16:11:05 +08:00			`<title>ARTIQ: Advanced Real Time Infrastructure for Quantum physics » M-Labs</title>`
add ARTIQ page 2015-01-16 19:23:15 +08:00
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			`<a href="https://github.com/m-labs/artiq"><img style="position: absolute; top: 0; right: 0; border: 0; z-index: 1;" src="forkme_right_white_ffffff.png" alt="Fork me on GitHub"></a>`

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			`<li><a class="selected" href="index.html">artiq</a></li>`
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			`<div id="container">`
			`<div class="full">`
			`<div style="float: right;"><img src="ion_trap.png"></div>`
			`<p>ARTIQ (Advanced Real-Time Infrastructure for Quantum physics) is a next-generation control system for quantum information experiments. It is being developed in partnership with the <a href="http://www.nist.gov/pml/div688/grp10/index.cfm">Ion Storage Group</a> at NIST, and its applicability reaches beyond ion trapping.</p>`

			`<p>Modern research on quantum information systems poses particular challenges to the control system:`
			`<ul>`
			`<li>dozens of signals need to be received and generated with extremely precise timing, in particular to ensure phase coherence</li>`
			`<li>quantum error correction schemes require very low reaction latency in response to a measurement</li>`
			`<li>real-world implementations of quantum gates, and a fortiori quantum algorithms, involve structurally complex protocols</li>`
			`<li>ever-improving experimental techniques drive the need for a flexible and programmable system</li>`
			`<li>the diversity of equipment, device drivers and data analysis software involved in a single experiment results in a distributed and multi-platform environment</li>`
			`</ul>`
			`</p>`

			`<p><center><img src="lab_hardware.png"></center></p>`

			`<h2>Enter ARTIQ</h2>`

			`<p>ARTIQ features a high-level programming language, based on Python, that helps describing complex experiments. It is compiled and executed on dedicated FPGA hardware with nanosecond timing resolution and sub-microsecond latency.</p>`

			`<p>The time-critical code (a <i>kernel</i>) running on the FPGA (the <i>core device</i>) is easily interfaced with Python code on the computer using a remote procedure call (RPC) mechanism.</p>`

			`<p>The FPGA design is highly portable so that it can adapt to different laboratory setups and resist hardware obsolescence.</p>`

			`<p>ARTIQ drivers for non-realtime devices can be run on remote machines with different operating systems.</p>`

			`<p>The project also includes a graphical user interface, an experiment scheduling system, and databases for experiments, devices, parameters and results.</p>`

			`<p>Technologies employed include <a href="http://python.org">Python</a>, <a href="../gateware.html">Migen</a>, <a href="../gateware.html">MiSoC</a>/<a href="https://github.com/openrisc/mor1kx">mor1kx</a>, <a href="http://llvm.org">LLVM</a> and <a href="https://github.com/numba/llvmlite">llvmlite</a>.</p>`

			`<p><center><img src="comp.png"></center></p>`

artiq: add open source note 2015-01-20 11:54:13 +08:00			`<h2>Open source</h2>`
add ARTIQ page 2015-01-16 19:23:15 +08:00
artiq: add open source note 2015-01-20 11:54:13 +08:00			`<p>Another goal of ARTIQ is to streamline and simplify the design flow of quantum physics instrumentation by promoting design reuse through the development of platform-independent, open-source hardware and software.</p>`

			`<p>Our aim is to provide a control system suitable for the challenges of modern quantum information research, which is based on modular, parameterized and open components that allow physicists to rapidly design and deploy new experiments.</p>`

			`<h2>A taste of the programming language</h2>`
			`<h4>Timing language basics</h4>`
add ARTIQ page 2015-01-16 19:23:15 +08:00			`<pre>`
			`trigger.sync() # wait for trigger input`
			`start = now() # capture trigger time`
			`for i in range(3):`
			`delay(5*us)`
			`dds.pulse(900MHz, 7us) # first pulse 5 µs after trigger`
			`at(start + 1*ms) # re-reference time-line`
			`dds.pulse(200MHz, 11us) # exactly 1 ms after trigger`
			`</pre>`
artiq: add open source note 2015-01-20 11:54:13 +08:00			`<p>`
			`<ul>`
			`<li>now(), at(), delay() describe time-line of an experiment</li>`
			`<li>Exact time is kept in an internal variable</li>`
			`<li>That variable only loosely tracks the execution time of CPU instructions</li>`
			`<li>The value of that variable is exchanged with the real-time input/output (RTIO) core that does precise timing</li>`
			`</ul>`
			`</p>`
			`<h4>Parallelism</h4>`
add ARTIQ page 2015-01-16 19:23:15 +08:00			`<pre>`
			`with sequential:`
			`with parallel:`
			`a.pulse(100MHz, 10us)`
			`b.pulse(200MHz, 20us)`
			`with parallel:`
			`c.pulse(300MHz, 30us)`
			`d.pulse(400MHz, 20us)`
			`</pre>`
artiq: add open source note 2015-01-20 11:54:13 +08:00			`<ul>`
			`<li>Experiments are inherently parallel: simultaneous laser pulses, parallel cooling of ions in different trap zones</li>`
			`<li>parallel and sequential contexts with arbitrary nesting</li>`
			`<li>a and b pulses both start at the same time</li>`
			`<li>c and d pulses both start when a and b are both done (after 20 µs)</li>`
			`<li>Currently implemented by inlining, loop-unrolling, and interleaving (i.e. static scheduling at compile time)</li>`
			`</ul>`
			`<h4>Organize experiment components and reuse code</h4>`
add ARTIQ page 2015-01-16 19:23:15 +08:00			`<pre>`
			`class Experiment(AutoDB):`
			`def build(self):`
			`self.ion1 = Ion(...)`
			`self.ion2 = Ion(...)`
			`self.transporter = Transporter(...)`

			`@kernel`
			`def run(self):`
			`with parallel:`
			`self.ion1.cool(duration=10*us)`
			`self.ion2.cool(frequency=...)`
			`self.transporter.move(speed=...)`
			`delay(100*ms)`
			`self.ion1.detect(duration=...)`
			`</pre>`

			`<h2>Is ARTIQ right for my lab?</h2>`
			`<div style="float: right;"><img src="logo_small.png"></div>`
			`<p>If you don't mind <a href="manual/installing.html">getting your hands dirty</a> (i.e. compiling software and FPGA bitstreams), it's easy to find out by yourself! The core device is based on the resource-efficient MiSoC system-on-chip design, and you can use a limited version of ARTIQ with the small and low-cost <a href="http://papilio.cc/">Papilio Pro</a> board. Feel free to send feedback to the mailing list!</p>`

			`<p>Note that ARTIQ is still in development and we expect to deploy a fully functional release (that will include a GUI) at NIST by June 2015. We are also working on making the installation procedure easier.</p>`

			`<h2>Resources</h2>`
			`<p>`
			`<ul>`
			`<li><a href="https://github.com/m-labs/artiq">Source code repository</a></li>`
			`<li><a href="https://ssl.serverraum.org/lists/listinfo/artiq">Public mailing list</a></li>`
			`<li><a href="slides_taaccs.pdf">Slide-show</a></li>`
			`<li><a href="manual/">Manual</a> (work in progress)</a>`
			`<li>Commercial support available - contact sb at m-labs.hk</li>`
add ARTIQ press release links 2015-01-31 14:51:18 +08:00			`<li>Press release: <a href="http://nist.gov/pml/div688/grp10/open-source-software-for-quantum-information.cfm">Open-Source Software for Quantum Information</a></li>`
add ARTIQ page 2015-01-16 19:23:15 +08:00			`</ul></p>`
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